Isaac married in Glasgow on 30 Aug 1899 Fanny Josephart, a 19 year old dressmaker. He started out in Inverness selling his wares on the station concourse as well as at Cameron Barracks. As business grew he moved in 1902 to more suitable premises, renting a shop at 18 New Market in the Victorian covered market, where he set up ' the Railway Watch & Clock Company'. Here he stayed until he retired. The interior of the shop is still unchanged with it's famous Art Nouveau windows & glass fascia. The name of Isaac Finkelstein is still retained above the window.
The Inverness Jewish community in 1906 acquired a piece of ground at Tomnahurich to be utilised as a cemetery. Their numbers waxed & waned before, during and after WWII. Isaac Finkelstein received a gold medal for his support given to Jewish servicemen stationed in the area. His son, Morris Finkelstein a former pupil of Inverness Royal Academy, worked in the Bacteriology Dept of Edinburgh University, won a Rockefeller Fellowship and sailed for America. A declining Jewish population remained in Inverness and were visited annually by a rabbi from Edinburgh, until his last visit in 1981. The core founding members of the community had passed away. Isaac Finkelstein died in Sept 1963.