[1][3] It replaced the parish's 15th-century Collegiate Church, which was located at another site, close to the mausoleum in Strathclyde Park.
[6] The church contains a stained glass window by Ballantine and Gardiner, representing Jesus, Martha and Mary that was fitted in 1876 in memory of Mrs James Stevenson.
[8][9] The cross is of red sandstone and is cited as a rare example of ecclesiastical sculpture from the former British early medieval Kingdom of Strathclyde.
[3] The current minister is the Reverend Ross Blackman BSc MBA BD(Honours),[12] who was ordained and inducted on 19 November 2015.
Dr Wyllie is one of three ministers of Hamilton Old to have served as Moderator of the General Assembly since the end of the Second World War, the others being Matthew Stewart in 1947 and John Fraser in 1958.