| Notes |
- 1910 US Census, Portland Ward 5, Cumberland, Maine
Household Gender Age Birthplace
SELF Edgar A Jackson M 38y Canada (immigrated 1889, parents born in Canada)
WIFE Helena Jackson F 34y Canada (immigrated 1896, parents born in Canada)
SON Harold Jackson M 7y Maine
DAU Helene Jackson F 4y Maine
"United States Census, 1910," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MR39-4N1 : accessed 13 Apr 2013), Helene Jackson in entry for Edgar A Jackson, 1910.
1920 US Census, , Cumberland, Maine
Household Gender Age Birthplace
SELF Edgar A Jackson M 48y Canada (parents born in Canada)
WIFE Helena Jackson F 43y Canada (parents born in Canada)
SON Harold A Jackson M 17y Maine
DAU Helena R Jackson F 14y Maine
"United States Census, 1920," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MFZ6-KXM : accessed 13 Apr 2013), Helena R Jackson in entry for Edgar A Jackson, 1920.
1930 US Census, Portland, Cumberland, Maine
Household Gender Age Birthplace
Head John E Jackson M 57 Canada (parents born in Canada, immigrated 1889)
Wife Helena Jackson F 54 Canada (parents born in Canada, immigrated 1895)
Daughter Helena R Jackson F 24 Maine
"United States Census, 1930," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/XM8P-5SV : accessed 13 Apr 2013), Helena R Jackson in entry for John E Jackson, 1930.
- (Research):HEN-6, HEN-63
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