How can I search the 1900 and 1910 US Census by enumeration district?
I want to search two names, using first names only, for relatives who are not turning up otherwise and may have been boarders with another family or in one case may have remarried and I don't know her married name. I know the general area of Philadelphia where they most likely were living and would like to search by most promising enumeration districts, then work outward from there if needed. My search would be first name and a birthdate range. Right now I am reading through every enumeration district and it's very slow!