The club first joined the Scottish Reserve League in 1909-10 and found the first few years of competing in the league though. It wasn't until the 1913–14 season when they made their mark when they lost 1–0 at Hearts in a league decider for the Reserve League title. It meant that the club missed out on a unique League and Cup double after they captured the Scottish 2nd XI Cup for the first time that season. They dispatched of St Mirren in the final over two legs (1-1 away and 3–1 at home). They successfully defended the Scottish 2nd XI Cup the following season when Clyde overcame Falkirk in the final over two legs (2-1 loss away and a 3–1 home win).