Hi, I have just found this thread about Thomas Cartwright (my great grandfather) and here is some information that I can give and have records to verify almost all of this. I also have lots of records regarding the family in my private family tree.
Thomas Cartwright born 6.12.185 in Birkenhead, Cheshire, England
Father: Henry was an Engineer at the time of Thomas' marriage
Possible Family in 1871 Census (not able to verify this is his family)
Father: Henry 39, born in Rippon Yorkshire - tinplate ?
Mother: Mary 41, born in North Wales
Brother: William 12, Scholar born in Birkenhead
Thomas: 5, Scholar born in Birkenhead
Brother: Henry 2 born in Yorkshire
Occupation: Mariner -1st, 2nd and Master Certificates obtained in UK - Certificate No: 022508
Naturalised as a US Citizen aged 37, first arriving in the US at aged 21 (date of birth given is 6.12.1865). Photo attached to document.
Passport Applications: one at aged 49 (Cert no 10644) and the other at 51 (Cert No 57174), date & place of birth given as 6.12.1865, Birkenhead, Cheshire England. Photos on both applications.
Also have some of the ships that Thomas worked and the positions he held.
Thomas & Minnie Emma Alice Royal married 6 September 1899 in Tynemouth, Northumberland, and have 2 children Harry Royal Cartwright 1900-1988 & Winifred Ethel Royal Cartwright 1906-1996.
Winifred's School Admissions show that in 1918 Thomas was a Officer, Mercant Marine and iupon hr leaving in 1924, he was a Lieutenant in the US Naval Reserves. Also, on Harry's WWII draft papers 1940, Thomas (aged 75) was a Lieutenant Commander living in the US Naval Home (which was a place for retired officers) in Philadelphia, Pennsylvania. I have tried to find out information from the Naval Home but the records have been moved to St Louis and you can only access the records in person at the National Archives (I live in overseas).
Minnie lived in Montreal Canada from 1928 onward, while Thomas worked on the ships in the US. Not able to find her in any records other than in England.
Both Thomas and Minnie's deaths, are also a mystery.
Harry joined his father in the US about 1928 and died in 1988 in Brooklyn, Anne Arundel, Maryland. I have the record for Harry's 1928 US Application for Seaman's Protection Certificate. His birth date is wrong on the paperwork, not sure why.
Winifred immigrated to Australia in approx 1928, married and had 8 children.
If anyone could help, would be grateful and if you need more information, please let me know.