Geoffrey. If your second cousin's grandparents were John Samuel Spurgeon and his wife Margaret, then they would appear to be John Samuel Spurgeon and Margaret Dempster, who married 24th March 1877 at All Saints Church, Ajmere(?), Calcutta. That marriage record says that John Samuel's father was Samuel Spurgeon. A John Samuel Spurgeon was born to Samuel Spurgeon and his wife Mary Ann on 13th December 1848 and baptised at Cawnpore on 16th July 1849. Samuel was "late Quartermaster Regiment of Loodiana." In fact Samuel had died on 9th June 1849 of a fall from his horse. https://books.google.com.au/books?id=2D1DAQAAMAAJ&pg=PA334&dq=cawnpore+spurg eon+1849&hl=en&sa=X&ei=3EERVcuyDo2F8gWk1YHYCw&ved=0CCEQ6AEwAQ#v=onepage&q=ca wnpore%20spurgeon%201849&f=false His will is on FindMyPast. A Samuel Spurgeon married Mary Ann Preston on 28th December 1834 at Ghazeepore. Samuel was of the "Honourable Company's European Regiment at Dinapore." This would appear to be the correct line. I have not been able to quickly trace Samuel Spurgeon further back - no father's name is given on the records on FindMyPast or FamilySearch - but as Samuel Spurgeon married in 1834 he could not possibly be a child of Charles Haddon Spurgeon. One possible source of confusion, or indeed connection, could be the name of Charles Haddon Spurgeon's father. He died on 14th June 1902 in London, and the Lutheran Church Review volume 22 page 142 gives his name as John S. Spurgeon. You can view this reference at https://archive.org/stream/lutheranchurchr02assogoog#page/n152/mode/2up. The "S" may well be Samuel, leaving open the possibility of a connection further back. However, I cannot see the direct connection claimed by your cousin.