Hi Ra, I'm so sorry I missed your post somehow...I do appreciate your response.
Our (my husband's family) very rare spelling is "Conachan". I know our family originated in Donegal Ireland, then moved on to Edinburgh, Scotland. Apparently there was a falling out between the family - I think because our Conachan descendant walked away from the Catholic church. His family was so upset about this that they changed the spelling of their name in order to completely unassociate themselves from this uncle. Apparently it worked, I can find a very few Conachan's with this spelling in the whole world.
Our earliest known ancestor of Donegal, Ireland, married a Miss Boyle. He died after having a family (I think born in Donegal. After his death, this mother Boyle and (at least) young James Conachan went to live in Edinburgh, Scotland with her brother John Boyle and his wife Mary. James was born about 1862. At the age 14, this James left Scotland, with his Uncle John Boyle (I don't know if there were others who made the trip), for New Straightsville, Ohio in 1876. This Conachan/Boyle couple had 6 children that I know of - Hugh, James (born 1862), another un-named brother, Unity, Ann and Mary.
This son Jamesafter moving to New Straightsville, Ohio married Alice Barber in 1880. James was 18, Alice Barber was 15 when they married in Wellston, Jackson , Ohio in 1880 according to conversation with one of their children Ruth Conachan Biggs of Michigan. She is the only one alive today. James and Alice had 7 children, John born 25 apr 1888, Hughes, James, Charles born 11 apr 1897 (my husband's father), Loma Bell Conachan, Ruth and Margaret. I suspect "Bell" may be another surname. All these children were born in Bay City Michigan.
Other than this, I know that a brother is mentioned as being a priest in Donegal, so may be a child of the first generation of Conachan/Boyle. Also Hugh/Hughes is said to have gone to Casper Wyoming and owned a gambling casino there. Also Hugh was 75 when he died. I can find no documentation of this anywhere.
I just found the ship mentioning those Conachan's who went to Australia, but I have found no other ship with any of the spellings of conachan coming to the US.
Are you the same family as Eric and Jennifer Popham who has the CONNACHAN website. I just found that site and am very excited because the family (althought not the same dates) mention John, Hugh/Hughes and Ann Connachan which are all names my Donegal family used as well.
I do hope some of this sounds familiar to you or someone else who can shed some light on this family.
Feel free to respond to me at HCONACHAN@CELESTIAL1.COM if you like. That is "celestial #one.com"