My great grand aunt, Arabella Thurza (reeves) Calkins, was born in Cincinnati OH in 1838, married in 1862, and is reported to have died in 1913. She appears (with mangled spelling) in the 1910 census for Douglas, Converse County, WY, and the same family appears in the 1920 census in the same place, but without her. I would like to find confirmation of her death and a complete date. I can not find a WY death index, but suggestions of other places to search would be welcome. Thanks.