Person:John Mayo (52)

Name^[4]	John Whitney Mayo
Gender	Male
Birth^[1]	7 Mar 1815	Warwick, Franklin, Massachusetts, United States
Marriage	21 Dec 1840	Manchester, Hillsborough, New Hampshire, United Statesto Frances Redfield (add)
Death^[2]	18 Jan 1854	Boston, Suffolk, Massachusetts, United States

References

↑ Warwick (Massachusetts). Town Clerk. Vital records, 1739-1900
Vol. 2, p. 161.

the Family of Mayo Samuel &
Nancy his Second wife
...
John Whitney born March 7th 1815.
↑ Massachusetts, United States. Massachusetts Deaths, 1841-1915
[1].

Deaths registered in the City of Boston for the year, 1854.
No.: 242
Date of Death: January 18 [1854]
Name: John W. Mayo
Age: 37 y. 10 m. [birth about Mar 1816]
Place of Death: Boston
Sex and Condition: M. M.
Occupation: Tin Plate Worker
Birthplace: Norwich [sic]
Parents: [blank]
Cause: Consumption
Suffolk, Massachusetts, United States. 1850 U.S. Census Population Schedule. (Washington D.C.: National Archives and Records Administration Publication M432)
line 21.
↑ Mayo, Chester Garst. John Mayo of Roxbury, Massachusetts, 1630-1688: a genealogical and biographical record of his descendants. (Huntington, Vermont: C.G. Mayo, c1965)
p. 151.

John Whitney Mayo [#6-33], s/o Samuel May [#5-10], b. Warwick 7 mar 1815, d. Boston 18 Jan 1854, m. Frances D. Redfield.
[Note: No real evidence to support his parentage is given, but it seems feasible because of his name John W. Mayo in death record and census. However, presentation of birth as Warwick or Norwich, 1815 or 1816, suggests this source is relying solely on the name match to assert his parentage. You have to think the death record is in error, the type of error that survivors may be likely to make, or else this doesn't look like the right person.]