Note: There is no proof that the Henry Langworthy who appears in the 1920 and 1930 censuses was Henry C., the son of Albertus, but the continuity of name, age and place make it likely. His middle name, Chester, seems to derive from his grandfather.

Census Tracking:
* 1900 - Lowell, Middlesex Co., MA (Henry)
* 1910 - Dracut, Middlesex Co., MA (Harry)
* 1920 - Lowell, Middlesex Co., MA (Henry)
* 1930 - Dracut, Middlesex Co., MA
* 1940 - Dracut, Middlesex Co., MA