Source Data Reference for:
City = Portland (ME-USA)
Time = 1850
| City | Year | Size | Size Comment | Year Comment | Author | Title | Location |
|---|---|---|---|---|---|---|---|
| Portland (ME-USA) | 1850 | 20,000 | Tertius Chandler | Four thousand years of urban growth | p53 | ||
| Portland (ME-USA) | 1861 | 26,000 | Tertius Chandler | Four thousand years of urban growth | p54 |