I can't go forwards with this family but I can go backwards.
I have Mary Ann Berry SINCLAIR on my SINCLAIR family tree born 1 Jan 1873 Sarclet, Wick parish to George SINCLAIR & Margaret CALDER.
George was born circa 1831/32 to John SINCLAIR & Annie OAG.
John SINCLAIR was bap 6 Nov 1795 Wick (born at Gansclet) to Alexander Sutherland SINCLAIR in Gansclet & Elizabeth SINCLAIR.
Elizabeth SINCLAIR was born in America, her grandparents were James SINCLAIR Factor in Ulbster & Christina SINCLAIR, the latter's father being John SINCLAIR in Thrumster and her siblings being Catherine, Sidney & Ephraim. Christina's sister Catherine SINCLAIR married Donald SINCLAIR the sailor the son of David SINCLAIR of Broynach & his second wife Janet EWAN or EWING.
Alexander Sutherland SINCLAIR in Gansclet was the son of John SINCLAIR in Gansclet & Christian / Christina CALDER. John SINCLAIR was a son of Donald SINCLAIR the sailor & Janet EWAN the couple mentioned above.
Where I fit in is that I am descended from James SINCLAIR, a fisherman & salt maker at Sarclet, also chamberlain at Thrumster House, and his second wife Elspeth SINCLAIR. James was another son to Donald SINCLAIR the sailor & Janet EWAN.
I have way more than the above, too much to impart it here, see PM for my email.
Peter