See Clinton Co cemetery book, year 2000 edition, p. 930, which lists Andrew's year of birth as 1848. Census entries make Andrew's year of birth more likely to be 1846, the year used on this F.A.G. memorial.

=====

Andrew Polk
United States Census, 1850
Name Andrew Polk
Event Type Census
Event Year 1850
Event Place Fairfield, Highland, Ohio, United States
Gender Male
Age 4
Race White
Birth Year (Estimated) 1846
Birthplace Ohio
House Number 908
Joshua W Polk M 38 Maryland
Elizabeth Polk F 36 Maryland
Robert Polk M 12 Ohio
Lydia Polk F 11 Ohio
Samuel Polk M 9 Ohio
Hannah Polk F 8 Ohio
William Polk M 7 Ohio
Josiah Polk M 6 Ohio
Andrew Polk M 4 Ohio
Jason Polk M 1 Ohio
Elizabeth Polk F 40 Maryland

=====

Andrew Polk
United States Census, 1860
Name Andrew Polk
Event Type Census
Event Date 1860
Event Place Fairfield Township, Highland, Ohio, United States
Gender Male
Age 13
Race White
Race (Original) [Blank]
Birth Year (Estimated) 1847
Birthplace Ohio
Page 281
Joshua W Polk M 48 Maryland
Elizabeth Polk F 46 North Carolina
Robert Polk M 23 Ohio
Lydia Polk F 20 Ohio
Samuel Polk M 19 Ohio
Hannah Polk F 18 Ohio
William Polk M 16 Ohio
Josiah Polk M 15 Ohio
Andrew Polk M 13 Ohio
Jason Polk M 11 Ohio
Ruth Polk F 9 Ohio
Phoeba Polk F 6 Ohio
Lettie Polk F 4 Ohio
Thos Polk M 0 Ohio

=====

Andrew N Polk
United States Census, 1870
Name Andrew N Polk
Event Type Census
Event Year 1870
Event Place Ohio, United States
Gender Male
Age 24
Race White
Race (Original) W
Birth Year (Estimated) 1845-1846
Birthplace Ohio
Page Number 18
Joshua W Polk M 57 Maryland
Elisabeth Polk F 55 North Carolina
William A Polk M 26 Ohio
Andrew N Polk M 24 Ohio
Jason Polk M 21 Ohio
Ruth S Polk F 18 Ohio
Phebe J Polk F 17 Ohio
Lettice S Polk F 15 Ohio
Thomas W M 12 Ohio

=====

Andrew Polk
United States Census, 1880
Name Andrew Polk
Event Type Census
Event Date 1880
Event Place Penn, Highland, Ohio, United States
Gender Male
Age 33
Marital Status Single
Race White
Race (Original) W
Occupation At Home
Relationship to Head of Household Son
Relationship to Head of Household (Original) Son
Birth Year (Estimated) 1847
Birthplace Ohio, United States
Father's Birthplace Maryland, United States
Mother's Birthplace North Carolina, United States
Sheet Letter D
Sheet Number 494
Person Number 2
Volume 1
Joshuay W Polk Self M 67 Maryland, United States
Elizabeth Polk Wife F 65 North Carolina, United States
Andrew Polk Son M 33 Ohio, United States
Fely Jain Polk Daughter F 27 Ohio, United States
Ediece Alona Polk Other F 24 Ohio, United States
Thomas W Polk Other M 20 Ohio, United States
John Corder Other M 27 Virginia, United States