Coming to this very late, but if it's still of interest I have information on the captain Alexander Ellis. He was the youngest of three brothers who were all master mariners - I'm descended from his brother Robert (1816-95).
They were born in North Leith; their parents were Robert Ellis, a plasterer, and Chirsty Mackenzie, daughter of Donald Mackenzie (d 1801) who farmed at Morangie - now the site of the whisky distillery of Glenmorangie.
Andrew (b 1 Mar 1815) and Alexander (b 2 Feb 1823 (not 1824 as it says on his Master's Cert.)) are both in ..
1858 - Directory for Nort'd North Shields lists
Ellis Andrew, master mariner, 27 Nile Street
Ellis Alexander, master mariner, 87 Norfolk Street
but I haven't found any later trace of Andrew, so perhaps he died soon after or emigrated ??
I haven't found a marriage for him either; I have some details of Robert and Alexander's families.