The family were apparently in Diss in October 1741 as John took on an apprentice there and paid duties. His later apprentices were taken on in Hoxne.
The 1741 settlement comes under Hoxne parish records, and has John Monument, Sarah his wife, with John, William and Lydia their children, Diss, Norfolk, 30 March 1741. I guess it means they were living in Hoxne by then, as they ahd done for some years, and had become legally settled there in 1741, and they were no longer beholden to Diss.
Maybe the family’s move was the other way round, i.e. they moved to Diss in March 1741 and the certificate was issued by the overseer in Hoxne. The parish would keep a copy of the certificate in case of challenge.
There’s a helpful explanation on
Genuki (Sorry! Amended - should read ‘Norfolk Archives’) on who needed to have settlement certificates and when they were issued.
http://www.rootschat.com/links/01sy6/coombs mentioned in an earlier post that Hoxne was a centre for linen weaving into the 18th century and it could be that John and Sarah went to Diss (which is a large, prosperous market town) when the trade started to decline and returned to Hoxne some years later when there was a new opportunity. There could also be family reasons behind some of the moves - maybe John went to Hoxne in the first place because he had family connections, inherited some land or something similar. The connections could be on either parent’s side.
Another move - John’s (presumed) father in Shipdham probably wasn’t from that parish originally - there are no Moniments in the Shipdham parish records before John married Mary.
It wasn’t typical for people to move far for work but it certainly happened. Norfolk and Suffolk had a relatively good road network, and there were lots of social/family ties around the region. One of my own family moved 20 miles west to east across Norfolk in 1740 when he completed his apprenticeship, to a village where he had distant cousins.