TNA also have Christiana's will:
Will of Christiana Mumford, Widow of Manor House Shacklewell , Middlesex | The National Archives
Date: 14 Nov 1856
Ref: PROB 11/2242/111
http://discovery.nationalarchives.gov.uk/details/r/D53391Also, Ancestry have both which'll save a few pounds. I've tried to pick out some details but I'm not good at reading this style of writing so you'll want to check them yourself.
Will of John Mumford:
- Of Milk? Street, Cheapside?, London
- Warehouseman
- Wife Christiana
- Son Henry Mumford
- Son William Mumford
- Friend? Thomas Abams?, of Nottingham
- Ann Dowson?
- Mary Dowson?
- Deceased? daughter Anna Maria Dowson?
- Son John Philpot? Mumford
- Son James Mumford
- Executors: Henry Mumford, William Mumford, Thomas Abams?
- Witnesses: Godfrey Goddard, solicitor, 101 Wood Street Cheapside; Joseph Hich?, clerk to Mr Goddard
- Proved: London, 19 Jan 1856; oaths of Henry? Mumford and William Mumford, sons
Will of Christiana Mumford:
- Of Manor House, Shacklewell, Middlesex
- Widow
- 3 children
- Daughter Sarah Steward? (Stewart?), wife of Raynham? William Steward
- Son Henry Mumford
- Son William Mumford
- Executors: Henry Mumford, Raynham? William Steward
- Witnesses: W B Lanfear?, ? ??church Lane ; Fredk. J Lee, clerk to W B Lanfear?
- Codicil:
- Sister-in-law Elizabeth Profoot?, residing in Huntingdon, widow
- Grandson Francis Forbes? Mumford Steward, son of daughter Sarah Steward
- Witnesses: Maria Maling?; Elizabeth Sidney; servants to Wm Stewart? Shackwell
- Proved: London, 14 Nov 1856; oaths of Henry Mumford, son, and Rayhham? William Steward; the executors