We know her maiden name from her son, Roy E’s, Idaho death certificate. And know her father was Edwin Evans since in 1880, she and her young family was living with him. Her find-a-grave memorial has her linked to husband James Richard Rogers, so I assume that was a second marriage. In the 1900 Census, Iva Rogers, wife of James R, living with Arther E Marty, says she married James in about 1890. Indeed, an Illinois marriage record says Iva Martz married Jas R Rogers in Knox County 17 Nov 1889.