Thank you so much, Monica! I am exploring the valuation rolls now.
The family is Jewish and I contacted sjac.org.uk -- I'd like to get the children's school records, but I think I will need to try to get them when I am next in Glasgow. They all arrived from Odessa around 1905-1907 (they aren't originally from there, though) and left at different times, through 1913.
The families I am looking at are:
Emanuel and Sarah Goldberg with children Hyman, Harry, Ruth Mary (usually Mary), Jacob, and Barnett. I have their 1911 census from 40 Thistle Street and Barnett's birth certificate. The other children were born in Russia. They left Glasgow in 1913.
Henry and Rachel Weinbloom and children Jeanie, Lizzie, Jack, David, and Sylvia. Lived in Glasgow until 1912. I have their 1911 census at 67 Coburg Street and David and Sylvia's birth certificates; the other children were born in Russia.
Morris and Rose Kapit/Kaput/Kapit and children Jacob and Isaac. I am not sure when Morris left, it was before Jacob was born in May, 1908. Rose and the children left Sept, 1911. I have their census record from 1911 living with the Goldbergs at 40 Thistle Street and the boys' birth certificates. Two mysteries here: I would love to find an outbound passenger list for Morris, and in their 1915 US census they have a 4-5 year old daughter named Sarah that was born in Scotland, but I can't find any other record of her, either birth certificate or passenger manifest.
Abram/Abraham and Rose Schechowitz. They left Glasgow in 1909 and I have no records from them apart from their passenger manifest.
Moses/Morris, Chaje/Clara, and Barnett/Barney Schechowitz. hey left Glasgow in 1910 and I have no records from them apart from their passenger manifest.
Israel and Fanny Mail. They lived at 216 Govan Street and then 19 Portugal Street. Israel is listed as a cousin on Sarah's 1913 passenger manifest, so I am trying to figure out the relationship. This is one of my big mysteries. I have their 1911 census, some valuation rolls, and some other records with their various addresses in Glasgow (they settled there). I would love to get his naturalization record or anything that would give more of his history.