Hi Alison,
Did a family search on Thomas Hepburn and Agnes Whitecross, on FreeReg and LDS Family Search,
got the following:-
Ann b 06 Mar 1809 bap 12 Mar 1809 @ Whitekirk
William b 11 Nov 1811 bap 17 Nov 1811 @ North Berwick
Janet b 1816 (died 1888, and age 72 on DC)
James b 18 Jan 1819 bap 31 Jan 1819 @Whitekirk
Jean b 23 Jun 1821 bap @ Whitekirk
Elizabeth b 29 Oct 1824 bap 06 Nov 1824 @ Whitekirk
Benjamin b 01 Mar 1826 bap 15 Mar 1826 @ Whitekirk
Margaret b 08 Jul 1828 bap 21 Jul1828 @ Whitekirk
That suggested using Scottish Naming Pattern, the following Grandparents,
William and Janet Hepburn
and
James and Ann Whitecross
So we can assume that the naming pattern wasn't followed, possibly due to previous marriage.
Found the following on the John Gray website,
Agnes Whitecross or Hepburn died Tyninghame as seen in Haddingtonshire Courier of 29 Mar 1861 page 2 column 3. (John Gray Centre, Haddington)
I take it you have the same children as I have found. I will do further checks.
Tom
PS I have just noticed all the extra info on your blog Alison, sorry for answering before reading it. I have amended the children list.