Mention of a Miss Ringolsky only appears in a single Leadville Evening Chronicle article describing a Temple Israel Sunday school picnic held on August 19, 1888.  No one bearing the name Ringolsky appears in city directories, census records, or at other Jewish events in Leadville which indicates that the individual may have been a visitor from out of town.
1 “A Delightful Picnic,” Leadville Evening Herald (Leadville, CO) August 20, 1888: 8.
Colorado Historic Newspapers Collection. https://www.coloradohistoricnewspapers.org/ (accessed July 16, 2019).