Hi, well like you say there are an awful lot of Smiths out there, but I can only give you the following.

Joseph b,1743 Leighton Buzard, Mar. Sarah Elliott b.1743 L.B

John b. 1770 L.B. Mar. Elizabeth ?

William b.1814 Billington, Mar. Matilda ? b.1815 St. Albans

Charles b.1840 Billington, Mar. Emma Piper 1839 Bermondsey

Edward H. 1870 Islington, Mar. Ann Taylor b.1872 Peckham Surrey

This is all I can give you, Edward & Ann are my Grandparents
so it goes back for me to my 4 x Great Grandfather.
If you can add any thing to this I would more than Grateful.
thanks for contacting me.
Dorili