Archibald McKechnie was born at 2 Marshall's Lane in Paisley, Renfrewshire, to Archibald and Catherine Wilson (Donaldson) McKechnie. His father was born in England and worked as a ship caulker at the shipyard and his mother was a local girl, also born in Paisley. In 1901 the family had moved to Wallsend, England, in Northumberland. Wallsend derives its name from being located at the end of Hadrian's wall. Its main industry was shipbuilding and was the home of Swan Hunter & Wigwam Richardson shipyards. By 1911 the family was back in Paisley and lived at 22 Underwood Place. Archibald was 15 years old and worked in a thread mill with his mother and older sister.
He married Henrietta Riddell on 9 August 1918 at her home on 10 First Terrace in the town of Clydebank. At the time of their marriage, Archibald was 21 years old, lived on 5 Agamburnon Place in the town of Dalmuir, very near Clydebank, and worked as a ship caulker like his father.
He lost is wife Henrietta in 1932 and was left with six young children. It is possible he moved to England and remarried, but I have found no records that prove this. He likely died in 1980 in England.
1901 England Census, Class: RG13; Piece 4795; Folio: 99; Page: 26
1911 Scotland Census, 02/04/1911 McKechnie, Archibald (Census 1911 573/01 0039/00 037)
Scotland, Statutory Registrations, 1855-2013, 1896 McKechnie, Archibald (Statutory Births 573/00 2440)
Scotland, Statutory Registrations, 1855-2013, 1918 McKechnie, Archibald - Riddell, Henrietta (Statutory Marriages 501/00 0216)