Here is a likely marriage record. Is it possible Josephine was the widow BLACK when she married Charles Saunders?
"New York, New York City Marriage Records, 1829-1940," database, FamilySearch(https://familysearch.org/ark:/61903/1:1:24MF-CCS : 10 February 2018), Charles Saunders and Josephine Ryno Black, 28 Sep 1870; citing Marriage, Brooklyn, Kings, New York, United States, New York City Municipal Archives, New York; FHL microfilm 1,543,856.
If this is her, you need to check alternate spellings. Use her parents' names - Cosa RYNO and Ana Eliza SMITH. Good luck! -NGP