I read The All-of-a-Kind Family as a child, and enjoyed it. It was worth rereading-- there is a class reading historical fiction, and this was just cuch fun. How could I not like it-- the whole first chapter is about how Sarah takes responsibility for her lost library book. Each chapter covers a different facet of family life in a New York tenement in 1912. The family is depicted as struggling a bit, but each of the five sisters gets a penny a day in allowance, which seems well-to-do to me. I was fascinated with the description of Jewish holidays and practices as a child, and there is a Sydney Taylor Book Award given for Jewish children's literature now. I wish I had the rest of the series, but they seem hard to find. I would just like to read them myself!
Found this while looking for information on Sydney Taylor; this was an interesting virtual tour of a tenement apartment at the time: