# ZG convoys

The ZG convoys were a series of Caribbean convoys which ran during the Battle of the Atlantic in World War II.
They take their name from the route: Cristóbal, Colón, Panama to Guantanamo, Cuba.

## Overview

The ZG series was the reverse of GZ series that ran from 31 August 1942 until 7 May 1945. There were 141 ZG convoys, comprising 950 individual ship listings and 86 escort ships listed. Almost all ships listed in a convoy made the complete trip between Cristóbal and Guantanamo with a few going to Kingston, Jamaica.
The series started with ZG 1 through ZG 139. There are no ships listed as being lost.

## Convoy list
### 1942

| Convoy | Departure Date | Arrival Date | No.of Merchant Ships | No.of Escort Ships | Notes |
| ZG 1 | 31 August 1942 | 5 September 1942 | 10 | 5 | 0 vessels lost |
| ZG 2 | 7 September 1942 | 11 September 1942 | 15 | 5 | 0 vessels lost |
| ZG 3 | 14 September 1942 | 17 September 1942 | 8 | 5 | 0 vessels lost |
| ZG 4 | 20 September 1942 | 25 September 1942 | 8 | 7 | 0 vessels lost |
| ZG 5 | 28 September 1942 | 3 October 1942 | 9 | 6 | 0 vessels lost |
| ZG 6 | 5 October 1942 | 9 October 1942 | 11 | 6 | 0 vessels lost |
| ZG 7 | 9 October 1942 | 12 October 1942 | 5 | 5 | 0 vessels lost |
| ZG 8 | 17 October 1942 | 21 October 1942 | 18 | 6 | 0 vessels lost |
| ZG 9 | 25 October 1942 | 29 October 1942 | 17 | 7 | 0 vessels lost |
| ZG 10 | 2 November 1942 | 5 November 1942 | 9 | 5 | 0 vessels lost |
| ZG 11 | 11 November 1942 | 14 November 1942 | 14 | 7 | 0 vessels lost |
| ZG 12 | 18 November 1942 | 22 November 1942 | 8 | 6 | 0 vessels lost |
| ZG 13 | 26 November 1942 | 30 November 1942 | 13 | 6 | 0 vessels lost |
| ZG 14 | 4 December 1942 | 8 December 1942 | 15 | 7 | 0 vessels lost |
| ZG 15 | 12 December 1942 | 16 December 1942 | 16 | 4 | 0 vessels lost |
| ZG 16 | 20 December 1942 | 24 December 1942 | 14 | 4 | 0 vessels lost |
| ZG 17 | 28 December 1942 | 1 January 1943 | 17 | 4 | 0 vessels lost |

### 1943

| Convoy | Departure Date | Arrival Date | No.of Merchant Ships | No.of Escort Ships | Notes |
| ZG 18 | 4 January 1943 | 8 January 1943 | 8 | 5 | 0 vessels lost |
| ZG 19 | 16 January 1943 | 20 January 1943 | 23 | 5 | 0 vessels lost |
| ZG 20 | 24 January 1943 | 28 January 1943 | 24 | 5 | 0 vessels lost |
| ZG 21 | 3 February 1943 | 7 February 1943 | 16 | 5 | 0 vessels lost |
| ZG 22 | 13 February 1943 | 17 February 1943 | 22 | 5 | 0 vessels lost |
| ZG 23 | 23 February 1943 | 28 February 1943 | 1 | 6 | 0 vessels lost |
| ZG 24 | 5 March 1943 | 9 March 1943 | 28 | 5 | 0 vessels lost |
| ZG 25 | 15 March 1943 | 19 March 1943 | 19 | 6 | 0 vessels lost |
| ZG 26 | 25 March 1943 | 29 March 1943 | 18 | 8 | 0 vessels lost |
| ZG 27 | 4 April 1943 | 8 April 1943 | 26 | 8 | 0 vessels lost |
| ZG 28 | 14 April 1943 | 18 April 1943 | 25 | 5 | 0 vessels lost |
| ZG 29 | 24 April 1943 | 28 April 1943 | 24 | 8 | 0 vessels lost |
| ZG 30 | 4 May 1943 | 8 May 1943 | 11 | 6 | 0 vessels lost |
| ZG 31 | 14 May 1943 | 18 May 1943 | 14 | 7 | 0 vessels lost |
| ZG 32 | 24 May 1943 | 28 May 1943 | 14 | 9 | 0 vessels lost |
| ZG 33 | 3 June 1943 | 7 June 1943 | 10 | 10 | 0 vessels lost |
| ZG 34 | 13 June 1943 | 17 June 1943 | 11 | 11 | 0 vessels lost |
| ZG 35 | 23 June 1943 | 27 June 1943 | 18 | 7 | 0 vessels lost |
| ZG 36 | 3 July 1943 | 7 July 1943 | 8 | 9 | 0 vessels lost |
| ZG 37 | 13 July 1943 | 17 July 1943 | 7 | 13 | 0 vessels lost |
| ZG 38 | 23 July 1943 | 27 July 1943 | 8 | 7 | 0 vessels lost |
| ZG 39 | 2 August 1943 | 6 August 1943 | 14 | 5 | 0 vessels lost |
| ZG 40 | 12 August 1943 | 16 August 1943 | 5 | 7 | 0 vessels lost |
| ZG 41 | 22 August 1943 | 26 August 1943 | 7 | 6 | 0 vessels lost |
| ZG 42 | 1 September 1943 | 5 September 1943 | 4 | 6 | 0 vessels lost |
| ZG 43 | 11 September 1943 | 15 September 1943 | 3 | 5 | 0 vessels lost |
| ZG 44 | 21 September 1943 | 23 September 1943 | 3 | 5 | 0 vessels lost |
| ZG 45 | 1 October 1943 | 4 October 1943 | 3 | 5 | 0 vessels lost |
| ZG 46 | 11 October 1943 | 15 October 1943 | 4 | 6 | 0 vessels lost |
| ZG 47 | 21 October 1943 | 24 October 1943 | 1 | 5 | 0 vessels lost |
| ZG 48 | 31 October 1943 | 4 November 1943 | 3 | 5 | 0 vessels lost |
| ZG 49 | 10 November 1943 | 12 November 1943 | 2 | 5 | 0 vessels lost |
| ZG 50 | 20 November 1943 | 24 November 1943 | 1 | 5 | 0 vessels lost |
| ZG 51 | 30 November 1943 | 4 December 1943 | 11 | 0 | 0 vessels lost |
| ZG 52 | 10 December 1943 | 14 December 1943 | 12 | 0 | 0 vessels lost |
| ZG 53 | 20 December 1943 | 24 December 1943 | 14 | 0 | 0 vessels lost |
| ZG 54 | 30 December 1943 | 1 January 1944 | 6 | 0 | 0 vessels lost |

### 1944

There are no escorts list for 1944.
| Convoy | Departure Date | Arrival Date | No.of Merchant Ships | Notes |
| ZG 55 | 9 January 1944 | 13 January 1944 | 11 | 0 vessels lost |
| ZG 56 | 20 January 1944 | 23 January 1944 | 7 | 0 vessels lost |
| ZG 57 | 29 January 1944 | 2 February 1944 | 9 | 0 vessels lost |
| ZG 58 | 8 February 1944 | 12 February 1944 | 18 | 0 vessels lost |
| ZG 59 | 18 February 1944 | 22 February 1944 | 16 | 0 vessels lost |
| ZG 60 | 28 February 1944 | 3 March 1944 | 18 | 0 vessels lost |
| ZG 61 | 9 March 1944 | 14 March 1944 | 12 | 0 vessels lost |
| ZG 62 | 19 March 1944 | 23 March 1944 | 14 | 0 vessels lost |
| ZG 63 | 29 March 1944 | 2 April 1944 | 10 | 0 vessels lost |
| ZG 64 | 8 April 1944 | 13 April 1944 | 16 | 0 vessels lost |
| ZG 65 | 18 April 1944 | 22 April 1944 | 11 | 0 vessels lost |
| ZG 66 | 28 April 1944 | 2 May 1944 | 19 | 0 vessels lost |
| ZG 67 | 8 May 1944 | 12 May 1944 | 7 | 0 vessels lost |
| ZG 68 | 18 May 1944 | 22 May 1944 | 9 | 0 vessels lost |
| ZG 69 | 28 May 1944 | 31 May 1944 | 6 | 0 vessels lost |
| ZG 70 | 2 June 1944 | 6 June 1944 | 6 | 0 vessels lost |
| ZG 71 | 7 June 1944 | 10 June 1944 | 5 | 0 vessels lost |
| ZG 72 | 12 June 1944 | 16 June 1944 | 8 | 0 vessels lost |
| ZG 73 | 17 June 1944 | 20 June 1944 | 2 | 0 vessels lost |
| ZG 74 | 22 June 1944 | 26 June 1944 | 7 | 0 vessels lost |
| ZG 75 | 27 June 1944 | 2 July 1944 | 9 | 0 vessels lost |
| ZG 76 | 2 July 1944 | 6 July 1944 | 7 | 0 vessels lost |
| ZG 77 | 7 July 1944 | 10 July 1944 | 7 | 0 vessels lost |
| ZG 78 | 12 July 1944 | 16 July 1944 | 11 | 0 vessels lost |
| ZG 79 | 17 July 1944 | 21 July 1944 | 8 | 0 vessels lost |
| ZG 80 | 22 July 1944 | 26 July 1944 | 10 | 0 vessels lost |
| ZG 81 | 27 July 1944 | 30 July 1944 | 1 | 0 vessels lost |
| ZG 82 | 1 August 1944 | 3 August 1944 | 2 | 0 vessels lost |
| ZG 82A | 1 August 1944 | 6 August 1944 | 3 | 0 vessels lost |
| ZG 83 | 6 August 1944 | 10 August 1944 | 1 | 0 vessels lost |
| ZG 84 | 12 August 1944 | 15 August 1944 | 1 | 0 vessels lost |
| ZG 85 | Not listed | Not listed | Not listed | |
| ZG 86 | 21 August 1944 | 25 August 1944 | 4 | 0 vessels lost |
| ZG 87 | Not listed | Not listed | Not listed | |
| ZG 88 | 31 August 1944 | 4 September 1944 | 3 | 0 vessels lost |
| ZG 89 | 5 September 1944 | 8 September 1944 | 3 | 0 vessels lost |
| ZG 90 | 10 September 1944 | 13 September 1944 | 2 | 0 vessels lost |
| ZG 91 | Not listed | Not listed | Not listed | |
| ZG 92 | Not listed | Not listed | Not listed | |
| ZG 93 | 25 September 1944 | 29 September 1944 | 3 | 0 vessels lost |
| ZG 94 | Not listed | Not listed | Not listed | |
| ZG 95 | 6 October 1944 | 9 October 1944 | 3 | 0 vessels lost |
| ZG 96 | 10 October 1944 | 12 October 1944 | 1 | 0 vessels lost |
| ZG 96A | 10 October 1944 | 13 October 1944 | 1 | 0 vessels lost |
| ZG 97 | 15 October 1944 | 19 October 1944 | 2 | 0 vessels lost |
| ZG 98 | 20 October 1944 | 23 October 1944 | 1 | 0 vessels lost |
| ZG 99 | 25 October 1944 | 29 October 1944 | 2 | 0 vessels lost |
| ZG 100 | 30 October 1944 | 3 November 1944 | 4 | 0 vessels lost |
| ZG 101 | Not listed | Not listed | Not listed | |
| ZG 102 | 9 November 1944 | 13 November 1944 | 2 | 0 vessels lost |
| ZG 103 | 14 November 1944 | 17 November 1944 | 1 | 0 vessels lost |
| ZG 104 | 19 November 1944 | 22 November 1944 | 1 | 0 vessels lost |
| ZG 105 | 24 November 1944 | 28 November 1944 | 4 | 0 vessels lost |
| ZG 106 | 30 November 1944 | 3 December 1944 | 1 | 0 vessels lost |
| ZG 107 | 4 December 1944 | 7 December 1944 | 2 | 0 vessels lost |
| ZG 108 | 9 December 1944 | 13 December 1944 | 2 | 0 vessels lost |
| ZG 109 | Not listed | Not listed | Not listed | |
| ZG 110 | 19 December 1944 | 23 December 1944 | 4 | 0 vessels lost |
| ZG 111 | 24 December 1944 | 27 December 1944 | 1 | 0 vessels lost |
| ZG 112 | 29 December 1944 | 31 December 1944 | 1 | 0 vessels lost |

### 1945

There are no escorts listed for 1945.
| Convoy | Departure Date | Arrival Date | No.of Merchant Ships | Notes |
| ZG 113 | 3 January 1945 | 7 January 1945 | 1 | 0 vessels lost |
| ZG 114 | 8 January 1945 | 11 January 1945 | 1 | 0 vessels lost |
| ZG 115 | 13 January 1945 | 17 January 1945 | 4 | 0 vessels lost |
| ZG 116 | 18 January 1945 | 22 January 1945 | 2 | 0 vessels lost |
| ZG 117 | 23 January 1945 | 27 January 1945 | 1 | 0 vessels lost |
| ZG 118 | 28 January 1945 | 2 February 1945 | 3 | 0 vessels lost |
| ZG 119 | 2 February 1945 | 5 February 1945 | 1 | 0 vessels lost |
| ZG 120 | 7 February 1945 | 10 February 1945 | 2 | 0 vessels lost |
| ZG 121 | Not listed | Not listed | Not listed | |
| ZG 122 | Not listed | Not listed | Not listed | |
| ZG 123 | 22 February 1945 | 27 February 1945 | 2 | 0 vessels lost |
| ZG 124 | 27 February 1945 | 2 March 1945 | 2 | 0 vessels lost |
| ZG 125 | 4 March 1945 | 8 March 1945 | 2 | 0 vessels lost |
| ZG 126 | 9 March 1945 | 12 March 1945 | 1 | 0 vessels lost |
| ZG 127 | Not listed | Not listed | Not listed | |
| ZG 128 | 20 March 1945 | 23 March 1945 | 1 | 0 vessels lost |
| ZG 129 | 24 March 1945 | 27 March 1945 | 1 | 0 vessels lost |
| ZG 130 | Not listed | Not listed | Not listed | |
| ZG 131 | 3 April 1945 | 5 April 1945 | 1 | 0 vessels lost |
| ZG 132 | Not listed | Not listed | Not listed | |
| ZG 133 | 13 April 1945 | 17 April 1945 | 1 | 0 vessels lost |
| ZG 134 | 18 April 1945 | 23 April 1945 | 2 | 0 vessels lost |
| ZG 135 | 23 April 1945 | 27 April 1945 | 1 | 0 vessels lost |
| ZG 136 | 28 April 1945 | 1 May 1945 | 1 | 0 vessels lost |
| ZG 137 | 2 May 1945 | 7 May 1945 | 2 | 0 vessels lost |
| ZG 138 | Not listed | Not listed | Not listed | |
| ZG 139 | Not listed | Not listed | Not listed | |

## Citations

* 1 2 3 4 5 6 7 8 ZG Series.