Under sheriff, Cornw. 1411 – 12, 1424–5.
Dep. feodary of the duchy of Cornw. c.1414–1430.
Commr. of inquiry, Cornw. Nov. 1418 (treasons and felonies), Devon, Cornw. (estates of John Carminowe), Feb. 1423 (estates of Thomas Franklyn), Cornw. May 1440 (alienations in mortmain and escapes of felons), Sept. 1443, June 1445 (piracy).
Tax collector, Cornw. Apr. 1428, Dec. 1429, Sept. 1432.
Mayor, Dunheved 1440.
He was perhaps related to two men of the same name who held office as sub-bailiff of the hundred of Stratton, Cornw., from 1362 to 1380, and from 1383 to 1386, respectively (SC6/812/10, 14, 15, 18, 20, 21, 813/5, 7, 8, 818/1, 4-8).
MAYHEW, John I (b. c.1387)