Thomas Read son of Thomas Read & Elizabeth
That 1841 census record Jon found for Elizabeth, Thomas (a draper) and Emily looks interesting but there's a few things that niggle. Elizabeth and Thomas not born in county and Thomas' age of 20. Even with the rounding down of ages that age seems too young. Although 'our' Thomas was baptised in 1814 we think he was probably born earlier given the baptism of Elizabeth Ann later the same year. And Thomas' age given in later censuses gives him a birth year of 1812/1813 giving him an age of 28/29 in 1841, which we'd expect to be rounded down to 25.
If this Thomas isn't the Thomas we're looking for it does mean there's another of a very similar name, age and occupation in the same area, which would complicate matters.
Various other records that I've found for Thomas, wife Charlotte and the Glanfields...
Possible GRO death registrations:
1884 Q4 Death - Thomas Read; age 74 (born c1810); West Ham; 04a; 134
1885 Q3 Death - Charlotte Read; age 77 (born c1808); Islington; 01b; 157
Charlotte's age doesn't match census records but the details seem to match the probate record.
Thomas' probate index record named executors as Benjamin Read and George Glanfield. A notice in the London Gazette is more explicit about the relationships, if we were in any doubt.
The London Gazette
03 Feb 1885
Issue: 25438, Page: 497
Notice to creditors, names Benjamin Read as brother and George Glanfield as son-in-law.
https://www.thegazette.co.uk/London/issue/25438/page/497Probate:
Charlotte Read
23 Sep 1885
The will of Charlotte Read late of Tollington Park Hornsey-road in the county of Middlesex Widow who died 29 Aug 1885 at Tollington Park was proved at the Principal Registry by Zephaniah Simpson of 22 paternoster-row in the City of London Public Accountant and Alfred Palmer of 429 Commercial-road in the said county Draper the Executors.
https://probatesearch.service.gov.uk/Calendar?surname=Read&yearOfDeath=1885&page=3#calendarThe London Gazette
4 December 1885
Issue: 25536, Page: 5901
Notice to creditors re. Charlotte Read, deceased, widow, late of Manor House, Woodford, Essex.
https://www.thegazette.co.uk/London/issue/25536/page/5901It appears that Thomas Read and Zephaniah Simpson (father-in-law to Thomas' sister Elizabeth Ann) were in business together...
The London Gazette
8 December 1837
Issue: 19567, Page: 3250
Notice of dissolution of partnership between Zephaniah Simpson and Thomas Read, drapers at Sydney-place Commercial-road.
https://www.thegazette.co.uk/London/issue/19567/page/3250The London Gazette
6 August 1847
Issue: 20762, Page: 2893
Notice of dissolution of partnership between Zephaniah Simpson and Thomas Read, drapers and haberdashers.
https://www.thegazette.co.uk/London/issue/20762/page/2893The London Gazette
12 September 1854
Issue: 21593, Page: 2815
Notice that James Browning, a linen draper, has assigned all his personal estate and effects to Zephaniah Simpson and Thomas Read.
https://www.thegazette.co.uk/London/issue/21593/page/2815Post Office Directory - London 1851
Read, Thomas - linendraper, 9, 10, 11 Sidney place, Commercial road east, & 3 Prospect place, Mile end road
Post Office Directory - London 1851
Simpson, Zephaniah & Thom. - linendrapers, 49 & 50 Farringdon st
Old Bailey Proceedings:
ELIZABETH SIDNELL, ELIZABETH CROSBY, Theft > simple larceny, 12th June 1843.
Theft of goods from Thomas Read, draper, of Sidney-place, Commerical-road.
https://www.oldbaileyonline.org/browse.jsp?id=t18430612-name-1564&div=t18430612-1984Emily Frances Read dau. of Thomas Read (jnr); wife of George Glanfield
Death announcement:
East London Observer
08 January 1927 (Saturday)
GLANFIELD - On January 2, 1927, at the Cheshnuts, Hale End, Woodford Green, Emily Frances, widow of George Glanfield, aged 88. Internment at the City of London Cemetery, on Thursday.
The London Gazette
10 April 1868
Issue: 23369, Page: 2175
Notice of dissolution of partnership in business G. Glanfield and Son, clothiers, of 247 Bethnal Green road by George Glanfeld (snr) and George Glanfeld (jnr).
https://www.thegazette.co.uk/London/issue/23369/page/2175The London Gazette
20 March 1906
Issue: 27896, Page: 2004
Notice of dissolution of partnership in business G. Glanfied and Son, of 462 and 464 Bethnal Green road by undersigned George Glanfield, George Read Glanfield, Robert Henry Glanfield and Charles John Glanfield.
https://www.thegazette.co.uk/London/issue/27896/page/2004There are a number of newspapers items for the Glanfields, mostly birth, marriage and death announcements. Rich pickings for anyone researching this branch.
Also, curiosity got the better of me and I've ordered the birth record for Emily Frances Read (mmn: Newmann) 1838.