In the 1900 census, Cristell is listed as Mary C. Calahan and born in 1880 which makes her 21 when she married.

Found where a Christell L Calahan over 18 married a James Vance over 21 on 14 Apr 1901. This Christell was living in Flat River and he in Elvins.

The child could have been born in late 1901 or in 1902. Maybe all three died sometime after that.