I looked thru my cemetery list collection and didn't find any COLOMBETor BELLON(Sorry), but I did find your Alexander GENESY, b1832 in France, d 3-26-1884, list says "Burial plot not located". Also listed there is an Alexander GENESEY, no birth-death details, but burial site given as A5-025-WE (WE means west end of the cemetery). Cem is Silver Terrace Cemetery in Virginia City, NV. Source of the info I have is "www.usgenweb.com". I hope this is new information for you. Let me know.