Hi Kathyv and welcome to the Brit-Gen forums.

I have no connection to these people but thought I'd have a search around and see if I could help you make a connection to Caroline Evans daughter of Samuel Thomas Evans.

I think your hunch was right, here's STE baptism courtesy of Ancestry.

City Road, The Tabernacle (Independent) London. Baptised Oct 6th 1820.

Samuel Thomas Evans born Jul 30th 1820. son of William Evans, paper stainer, of the parish of St Leonards Shoreditch and Harriot[sic] his wife.