- Called "Mary" in later life, but perhaps "Louisa" earlier.
According to the 1900 census, she had been married for two years before being widowed, had had 2 children, of which only one was living in 1900. This all matches.
This is from the 1900 Census, all living at 690 Michigan Ave. in Buffalo:
Emil Zaepfel, head, 54, born in Germany, parents born in Germany; year of citizen ship is 1872.
Mary Zaepfel, wife, 45, born in NY, parents born in Germany
Fries, Victoria, ?head, 51, born in NY, parents born in Germany
Fries, Victor, son, 21
Fries, Walter, son, 18
Fries, Louis, son, 15
Fries, Joseph, son, 13
Fries, Oscar, son, 10
Fries, Blonde?, daughter, 8
Bizantz, Antony E, nephew, 25
Bizantz, Louisa M, sister, 56, and widow, born in NY, parents born in Germany.
Both Victoria Fries and Louisa Bizantz are widows. Who is Emil Zaepfel? The name comes from the part of Germany (Alsace) that Rame and Rusch come from. Since the Zaepfel family has a different number, I assume that Emil Zaepfel is not related to the Rame sisters of Louisa and Victoria, but was just a boarder or friend from back home.
Since “relation to head of household” goes by family number, Antony Bisantz is Victoria Fries’ nephew, and Louisa Bizantz is Victoria’s sister. This matches. Antony Bizantz is Victora Fries’ nephew--her sister Louisa’s son. This is Anthony E. Bizantz III, who would marry Martha Valiquette in 1902, two years away.