Australian Convict Transportation Registers show a John DIMMOCKS (I think the same person Alison found) was convicted at Leicester Borough Quarter Sessions, 5 January 1846, sentence 7 years. Voyage date 4 March, 1846 to Van Diemens Land, ship Lady Palmyra.
Pardon was granted after 5 years in the colony and he had held a ticket of leave for 11 months.
Convict muster of 1849 shows his 'position' as: Depot Campbell Town
England and Wales Criminal Registers show:
JOhn DIMMOCKS, age 17, convicted of larceny, sentence 7 years transportation, at Leicester 1846
On another site is a family tree with mentions of him which include the same name and dates for marriage and children, suggesting his parents may have been John Dimmocks and Rebecca; and IGI has a baptism for a John DIMMOCKS at St Mary de Castro church, Leicester, 13 August 1827, with parents Jhn DIMMOCKS and Rebecca.
Cheers, Judith