I'm hoping someone from Portsmouth might help me solve a mystery. My grandparents lived at 5 Woodbury Ave. in 1900, according to the censes and my dad's birth certificate. My dad once told me he went back to Portsmouth as an adult and found the house was still standing. He said there were "3 houses, almost alike", but never said which was his. This summer I visited Portsmouth for the first time and looked for the house. I found the 3 similar houses, at the corner of Woodbury and Bartlett St. But no No. 5. They were numbered 11, 15, and 19 or 21. Actually the numbering system of Woodbury Ave. didn't make much sense. Were the house numbers changed somewhere along the line? Is there anywhere I can look to find the house numbers as of 1900? I would really like to know which of these 3 houses was my dad's. Thanks for any suggestions.