Hello,
My research indicates Thomas Huxtable had 11 children. Thre may have been born in England.
Those missing from your list include
James Henry Moore Huxtable B 1857
William Thomas Huxtable B 1855
John Sanders Huxtable B 1859
George Huxtable B 1872
Source is the Community Trees Project
http://histfam.familysearch.org Can you verify this?