The 1900 Census for Kennebunkport lists Chin Ling, Chinese, male, 28, single, POB: China, occ: Laundryman, as his own head of household. It also notes that he immigrated in 1888 (when his age would have been ~16)
Chin Ling
Status (enslaved, free or both): free
Town: Kennebunkport
Known dates: 1900
1900 Kennebunkport census - Chin Ling
US Census
