Margaret I checked all the census at the Phila. Archives on both spellings Doherty and Dougherty. There was nothing on James and Susanna in 1910 or 1930 In 1920, I did find James Dougherty age 48, wife Susan 55 and Frances, dau. 25. They are the only James and Susan in Phila. in all the years I checked. I made a copy of the census and I can mail it to you. By the way, they were both born Ireland and James was a firemen at a oil refinery here. Frances was a pocketbook maker at a factory. If this isn't your James then he wasn't in Phila. Email me at janicefriel@aol.com with you address if you want the census. Janice