Question: Who commissioned the second USS "Rockport" SP-738 in the center of summer tourist activity? 

Context paragraphs:
USS Portsmouth (1843): The second USS Portsmouth was a wooden sloop-of-war in the United States Navy in service during the mid-to-late 19th century.  She was designed by Josiah Barker on the lines of a French-built privateer, and built at the Portsmouth Navy Yard, directly across the Piscataqua River from Portsmouth, New Hampshire.  She was described as an improvement over the USS "Saratoga" built in the same shipyard a year earlier.  The "Portsmouth" was launched on 23 October 1843 and commissioned on 10 November 1844, with Commander John Berrien Montgomery in command.

Tourism in Goa: The state of Goa, in India, is famous for its beaches and places of worship, and tourism is its primary industry.  Tourism is generally focused on the coastal areas of Goa, with decreased tourist activity inland.  Foreign tourists, mostly from Europe, arrive in Goa in winter whilst the summer and monsoon seasons see a large number of Indian tourists.  Goa handled 2.29% of all foreign tourist arrivals in the country in 2011.  This relatively small state is situated on the western coast of India, between the borders of Maharashtra and Karnataka and is better known to the world as a former Portuguese enclave on Indian soil.  Tourism is said to be the backbone of Goa's economy.

USS Sappho (AKA-38): The second USS "Sappho" (AKA-38) was an "Artemis"-class attack cargo ship named for the minor planet "80 Sappho," which in turn was named for the Greek poet Sappho.  USS "Sappho" served as a commissioned ship for 12 months.

Whale watching in Australia: Whale watching in Australia is a popular recreational pursuit and a tourist activity along various coasts.  In 2008, whale and dolphin watching was worth an estimated A$ 31 million in direct expenditure to the Australian economy with an estimated 1.6 million tourists participating in the activity.  Whaling in Australia took place from 1788 to 1978 and was once commercially successful.  The Australian Whale Sanctuary was established in 1999 to protect dolphins and whales from hunting.  Humpback whales are the most common species seen in the waters surrounding Australia while Southern right whales, Minke whales and Blue whales are also seen.

USS Rockport (SP-738): The second USS "Rockport" SP-738 was built during 1917 and 1918 by Adams Shipbuilding Co., East Boothbay, Maine, as the wooden scientific research vessel "Ajax" for service in Labrador waters and acquired 2 October 1917 for U.S. Navy service from A. Fabbri of New York City, while still under construction.  Commissioned 16 February 1918, Ens. Charles W. Farmer, USNRF, in command, "Ajax" was renamed" Rockport" 20 February 1918.

Boothbay, Maine: Boothbay is a town in Lincoln County, Maine, United States.  The population was 3,120 at the 2010 census.  It includes the villages of East Boothbay and Trevett.  The Boothbay region is a center of summer tourist activity, and a significant part of its population does not live there year-round.

Bolands: Bolans is a community on the south-western end of the island of Antigua, headtown of the Saint Mary's Parish.  It was once an agrarian community but has slowly been transformed into a centre of tourist activity.  There are those in the community who involve themselves in agricultural activity, more as an avenue of feeding themselves or adding some needed income.  Bolans is home to the world-famous Jolly Beach Resort as well as Jolly Harbour Marina and Boatyard which provides a sheltered dockage with 24-hour security and a full-service boatyard.

Hunting in New Zealand: Hunting is a popular recreational pursuit and a tourist activity in New Zealand with numerous books and magazines published on the topic.  Unlike most other developed countries with a hunting tradition, there are no bag-limits or seasons for hunting large game in New Zealand.  Hunting in National Parks is a permitted activity.  The wide variety of game animals and the limited restrictions means hunting is a popular pastime which has resulted in a high level of firearms ownership among civilians.

USS Mars (AC-6): The second USS "Mars" (AC-6) was a collier of the United States Navy.  The ship was laid down by the Maryland Steel Co., Sparrows Point, Maryland on 5 October 1908, launched on 10 April 1909, sponsored by Miss Juliana Keyser, and commissioned at Norfolk on 26 August 1909, Master A. B. Randall, Naval Auxiliary Service, in command.  She was the sister of the USS Hector (AC-7).

Rockport Music: Rockport Music is a presenting organization in Rockport, Massachusetts, bringing music and other artistic programming in variety of genres to audiences in the greater Boston area and the Massachusetts North Shore.  Founded in 1981 as the Rockport Chamber Music Festival, Rockport Music has been under the artistic direction of pianist David Deveau since 1995.  In Summer 2010 the organization completed construction on a year-round permanent home, the Shalin Liu Performance Center.  Situated on the Atlantic coast, one hour north of Boston, Rockport has long been a destination for seaside tourism and historically a fishing village and artist colony.

Supporting paragraphs: USS Rockport (SP-738) Boothbay, Maine
Answer: Ens. Charles W. Farmer