The 1910 census shows that she's been married for 35 years, had 3 children of which 2 are living. So whose child is Stella?

MARRIAGE: HOLMDEN, LYDA and FOSTER, LEONARD G 0017 0054

OBIT: Name: Foster, Holmden Lyde
Date: January 19, 1917
Source: Source unknown; Cleveland Necrology File, Reel #026.
Notes: Foster-Holmden Lyde, beloved wife of Leonard G. Foster, Thursday morning, Jan. 18. Funeral services at residence, 3007 Archwood ave., Saturday, Jan. 20, 2 p. m.

DEATH: FOSTER LYDE H County Name: CUYAHOGA Date of Death: 1/18/1917 Volume Number: 2143 Certificate Number: 1597

Probably buried in section 39 of Riverside Cemetery near the large Holmden monument.

1. Gertrude FOSTER, [child] b. Abt 1874, Brooklyn Township, Cuyahoga, Ohio; d. Abt 1884.
2. Ernest Holmden FOSTER b. Feb 1877, Brooklyn Township, Cuyahoga, Ohio; d. 30 Apr 1915, Cleveland, Cuyahoga, Ohio.
3. Lawrence Willard FOSTER b. 21 Mar 1880, Brooklyn Township, Cuyahoga, Ohio; d. 1961, Cleveland, Cuyahoga, Ohio.
4. Stella GIRLSKI, ? b. Abt 1895, ,, Ohio, USA.