On the 1871 Census, William says he was born in North Nibley, Charlotte in Down Hatherley, William M 9, in Cheltenham and Alfred age 4 - Longney

1851 Census, Glos. Down Hatherley

William TROTMAN - 29 - born North Nibley, Glos
Charlotte - age 23 - born Down Hatherley
Sarah - 10 weeks/months - born Wootton-Under-Edge

(line through ages on census return)

1841 Census, Glos. North Nibley

Crowell Brook

TROTMAN

William - 50 - Ag Lab
Elizabeth - 50
Richard - Ag Lab - 20
William - 20
Robert - 10
Mary Gillings - 1

some of these siblings baptisms are on the FOD records (North Nibley)

? Gloucestershire Marriage Index, does have a marriage at North Nibley 27 December 1808, of William TROTMAN and Elizabeth BAKER - by Banns

1851 Census, Glos. North Nibley
Warrend?

TROTMAN

Richard - 32, born North Nibley
Zipporah - wife - born ditto
Maria - 7 - born Worcestershire, Kidderminster
Mark - 6 months, born Glos. North Nibley

next door but one

Warrend

William TROTMAN - 61 - born North Nibley
Elizabeth - 61 - born Wiltshire, Malmesbury
Robert - 21 - born Glos. North Nibley