Haven't seen the marriage entry, but here are their children:
Richard Carter Smith / Mary Williamson
m 24 Nov 1825 Campton, Beds
->
Frances Hester Smith b 14 Aug 1827 St Olave
(Richard Carter Smith, Merchant, & Mary, no.20 Shepherd Market)
- married 3 Jun 1856 St Dunstan, Stepney; d 1908
- husband Edward Atkinson (1819-1915), Master of Clare College Cambridge 1856-1915 (!)
Mary Carter Smith c 2 Oct 1829 Chr Ch, Southwark
Richard Goodhall Smith c 5 Apr 1832 Chr Ch, Southwark
- Richard Carter & Mary, Stamford St, Merchant
Ann Maria Smith 21 Apr 1835 St P
Elizabeth Harriet Smith 23 Jun 1837 St P
Edmond Henry Carter Smith 11 Jul, c 17 Sep 1839 St Pancras
- RC & Mary Smith of Kentish Town, Merchant; bapt. by Richard Williamson DD
AND his family:
Henry Smith
Hester Beavis Carter
m 17 Oct 1785 St Mary Bothaw
(HS widower otp, HBC spinster of the parish of Edmonton;
by Henry Owen, rector of St Olave, Hart St;
witn. William Blizard, Maria Blizard, Anne Carter, Mary Carter)
->
Hester Carter Smith b 9 Oct, c 7 Nov 1786 - St Swithin London Stone
Henry William Smith c 28 Sep 1787 - St Swithin London Stone
?? Henry Webb Smith b 4 Apr, c 27 Jun 1790 - Saint Olave,Southwark
- father Henry Smith, mother Elizabeth
Christopher Webb Smith b 30 May, c 27? Jun 1793 St Giles, Camberwell, Surrey
- bird artist, etc - d 18 Jan 1871 Florence
William Blizard Smith b 18 Apr, c 14 May 1795 - St Giles, Camberwell, Surrey
- d 18 Jul 1835 Bengal
Helen Jane Smith c 4 May 1797 - St Giles, Camberwell, Surrey,
Robert Webb Smith c 10 Jul 1799 - St Giles, Camberwell, Surreyy
Richd. Carter Smith c 21 Dec 1801 - Saint Giles,Camberwell
Gerard Edwd Smith b 28 Jan, c 24 Feb 1804 - St Giles, Camberwell, Surrey
AND hers:
Rev Edmund Williamson / Phoebe Riland (d 23 Oct 1840 aged 73?, Park St, Lonodn)
m 28 Jan 1793 Sutton Coldfield
->
Edmund Ryland Williamson c 23 Oct 1795 - Old Warden,Bedford
Frances Williamson c 7 Dec 1798 - Campton,Bedford
Mary Williamson c 6 Dec 1799 - Campton,Bedford
Catherine Williamson c 8 Apr 1801 - Campton,Bedford
Richard Williamson c 28 Dec 1802 - Campton,Bedford
- headmaster of Westminster School 1828-46
William Williamson c 7 Feb 1804 - Campton,Bedford
- fellow and tutor of Clare Coll, Cambridge
Elizabeth Williamson c 2 Jul 1805 - Campton,Bedford
Henry Williamson c 1 May 1807 - Campton,Bedford
Anne Williamson c 28 Sep 1809 - Campton,Bedford