Geoffrey, I can confirm that William Richardson, sergeant in HM 69th Foot, married Bridget Murtough "European widow" on 10th May 1813 in the Madras Presidency but no specific place mentioned except it was a C of E marriage. Godlieb Williams married Mary Richardson at Black Town Chapel, Madras on 29th April 1830. Of interest to you might be that Godlieb was described as "Indo Britain" (I assume "Indo-Briton"). If you go to https://familysearch.org/search/collection/1584960 and then https://familysearch.org/search/collection/1584967 and search on "Godlieb Williams" (free-to-view) you will see various corresponding entries in terms of births and marriages. You could then get the actual images from FindMyPast if you have a subscription. I tried my luck with William Richardson's death and found it fairly quickly. He was buried at Bellary, 20th May 1815, still a Sergeant 69th Foot. Age not quoted. Because he died in service there will not be a surviving service record. I think I'm right in saying that he would have been too early for medals, but in any case, many soldiers stationed in India were on garrison duty and never saw action.