Thomas Postlethwaite was an English clergyman and Cambridge fellow, Master of Trinity College, Cambridge

Trinity College, Cambridge

Trinity College is a constituent college of the University of Cambridge. Trinity has more members than any other college in Cambridge or Oxford, with around 700 undergraduates, 430 graduates, and over 170 Fellows...

 from 1789 to 1798.

Thomas Postlethwaite was the son of Richard Postlethwaite of Crooklands

Crooklands

Crooklands is a village in South Lakeland, Cumbria, England, south of Kendal on the A65 road. The Lancaster Canal and Peasey Beck pass through Crooklands...

, near Lancaster

Lancaster, Lancashire

Lancaster is the county town of Lancashire, England. It is situated on the River Lune and has a population of 45,952. Lancaster is a constituent settlement of the wider City of Lancaster, local government district which has a population of 133,914 and encompasses several outlying towns, including...

, Lancashire. He went to school in St Bees

St Bees

St Bees is a village and civil parish in the Copeland district of Cumbria, in the North of England, about five miles west southwest of Whitehaven. The parish had a population of 1,717 according to the 2001 census. Within the parish is St...

 before entering Trinity College, Cambridge as a sizar

Sizar

At Trinity College, Dublin and the University of Cambridge, a sizar is a student who receives some form of assistance such as meals, lower fees or lodging during his or her period of study, in some cases in return for doing a defined job....

 in 1749. Graduating BA in 1753, he became a fellow of Trinity in 1755. He was Barnaby lecturer in Mathematics in 1758. Ordained in 1756, he was from 1774 until his death Rector of Hamerton

Hamerton

Hamerton – in Huntingdonshire , England – is a village near Winwick west of Huntingdon.Hamerton Zoo is on the north side of the village....

. He was appointed Master of Trinity in 1789, and in 1791 served as university Vice-Chancellor. He died at Bath on 4 May 1798 and is buried in Bath Abbey

Bath Abbey

The Abbey Church of Saint Peter and Saint Paul, Bath, commonly known as Bath Abbey, is an Anglican parish church and a former Benedictine monastery in Bath, Somerset, England...

church.