== Official Navy Document Dates == 

 You posted"  
 "The convention at the time" Can not have been to have 1/2 the dates in one style, 1/2 in another...)" 
 Actually, I have the original handwritten documents in my possession and yes, they did vary. Where I have entered items in blockquotes, it is a transcription of the document containing misspellings, contractions, different date conventions, etc... 
 This item is from Naval Officer Records over 150 years old, that is how they wrote back then.  
 10th April 1839, Reappointed Ben F.B. Hunter  
 20th Aug 1835. August 20th 1835 appointed5. Nov. 12th to the Warren 547. Oct. 10th 37 Resign. accepted 31, March 22 39 Reinstated and hold in readiness for active service 173. March 28th 39 to the Constitution (at Norfolk) April 11th to the Constitution at N.Y. 189.National Archives (Naval Officer Records) 
 Also, one warrant was dated and signed by President Martin Van Buren, I would not presume to change that  

 I appreciate the cleanup on the timeline dates, that was helpful, but please do not change dates transcribed from official Navy documents.