More than 55 boats were built by Robertsons in preparation for the World War I, and the yard remained busy even during the Great Depression in the 1930s, as many wealthy businessmen developed a passion for yacht racing on the Clyde.

During World War II, the yard was devoted to Admiralty work, producing a wide range of large high-speed Fairmile Marine motor boats.

After the war, the yard built the successful one-class Loch Longs and two David Boyd designed 12-metre challengers for the America's Cup: Sceptre (1958) and Sovereign (1964).

Due to difficult business conditions, the Robertson family sold the yard in 1965, and it was turned over to GRP[clarification needed] production work until it closed in 1980.

As of 2024[update], part of the old navy complex that was the former location of Morris & Lorimer's boat building yard, is a timber loading berth and marina.