It’s difficult to guess as to which child is in the photo. Is it a girl? If so, it is one of the following:

• Alice Mary Cronce, born 7 April 1885 — the first child 🙂
• Emma Mary Cronce, born 15 October 1889
• Catherine Cronce, born 04 June 1893

If I knew more about late nineteenth-century clothing styles, that might provide clues. Elmer looks very young …