Mrs. Emma Louisa (Walker) Horstmann
of William H. Horstmann & Sons, New York City & Philadelphia
1819-1872
of Washington D.C. and Philadelphia; Director of William H. Horstmann & Co.,
1846-1894
Mrs. Clara Louisa (Horstmann) Thomas
1847-1928
Presumed to have died young
b.1854
of 238 South 13th Street, Philadelphia; President of William H. Horstmann & Co.
1858-1922