I found these in census records, but I don't know if they are the ones you're looking for:

Lewis R. born Oct 1896 son of Joshua & Nettie Stemen 1900 census, Allen, Marion, p 92B

Clifford O. born Aug 1894 son of Samuel & Mary E. 1900 census, Allen, Sugar Creek, p 226B

Darle J. born Aug 1890 son of William & Rachel Stemen 1900 census, Allen, German, p 52A, 1880 census Allen, German, p 385D

George A. born Feb 1894 son of Christian W. & Barbara A. Stemen 1900 census, Allen, German, p 57B

Leroy born Jul 1896 son of Christian W. & Barbara A. Stemen 1900 census, Allen, German, p 57B