In the Spring of 1873, the Rev. James Paton and certain members of Graham Street Reformed Presbyterian Congregation, Airdrie, resigned their claim to the Church and found themselves without a Church of their own.
In June 1873, Mr Paton and approximately 67% of the R.P Congregation was received into Communion of the Church of Scotland.
Soon afterwards, steps were taken towards the erection of a Parish Church, to seat 900, a Hall to seat 350.
Although the Congregation's contributions were very generous, clearly the task of raising around £11,000 for the purchase of a suitable site and the building costs was too much to expect from this source alone. Funds were obtained from various Trusts, Bequests, and various friends of the Church but chiefly through the tireless efforts of Alexander Whitelaw of Gartshore who was an MP for the City of Glasgow and nephew of the Baird brothers of Gartsherrie, local iron founders.
A Plaque can be seen in the Entrance Vestibule of the Church in grateful recognition of the assistance of Alexander Whitelaw in the Birth of Flowerhill Church.