His baptism abstract:

First name(s)            Elliot James
Last name                Morres
Gender                   Male
Birth year               -
Birth place              -
Baptism year             1831
Baptism date             13 May 1831
Place                    Reading
County                   Berkshire
Country                  England
Father's first name(s)   Elliot
Father's last name       Morres
Mother's first name(s)   Mary
Mother's last name       -
Record set               England Births & Baptisms 1538-1975
Category                 Birth, Marriage, Death & Parish Records
Subcategory              Parish Baptisms
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Foster's Alumni Oxonienses has for him:

Morres, Elliot James, 2s. Elliot of Reading, Berks, arm.  TRINITY COLL., matric 8 March, 1849, aged 18; B.A. 1852, a student of Lincoln's Inn 1853.
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In 1861 he was at Ragland Villa, 1, Wells Road, Lyncombe, Bath, Somerset with his young family:

First name(s)  Last name  Relationship  Marital status  Sex  Age  Birth year  Occupation  Birth place
Elliot J Morres  Head      Married    Male     29   1832  Lieutenant Army Retired  Reading, Berkshire, England
Susan P  Morres  Wife      Married    Female   31 1830  -  Britford, Wiltshire
Mary A   Morres  Daughter  -         Female    2 1859  -  Bath, Somerset
Susan E  Morres  Daughter  -          Female   0 1861  -  Bath, Somerset
Mary     Cross   Servant   Unmarried Female 19 1842  -  Somerset
Harriet  Cross   Servant   Unmarried Female 17 1844  -  Bailbrook, Somerset

Ref:
Archive reference  RG09
Piece number       1688
Folio              27
Page               5

Composite Ref: RG09, piece 1688, folio 27, p. 5
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In 1881 he was at Raglan Villas, 1, Wells Road, Bath Lyncombe and Widcombe, Bath, Somerset with his family:

First name(s)  Last name  Relationship  Marital status  Sex  Age  Birth year  Occupation  Birth place
Elliot J    Morres    Head          Married Male 49  1832  B.A. Oxon Late Lieut 47Th  Regt Reading, Berkshire
Susan P     Morres    Wife          Married Female  50  1831  -  Britford, Wiltshire
Mary A      Morres    Daughter      Single Female 22  1859  -  Bath, Somerset
Susan E     Morres    Daughter      Single Female 20  1861  -  Bath, Somerset
Francis J   Hill      Wifes Sister  Single Female 36  1845  -  Coombe Bissett, Wiltshire
Caroline    Keats     Servant Single Female 25 1856  Cook & Domestic Serv  Wells, Somerset
Elizabeth   Miller    Servant Single Female 20 1861  Parlour Maid Serv  Bath, Somerset
Florence A  Pakenham  Servant Single Female 14 1867  Undermaid Serv  Liverpool, Lancashire

Ref:
Archive reference  RG11
Piece number       2434
Folio              54
Page               1

Composite: Ref: RG11, piece 2434, folio 54, p. 1
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His death index:

First name(s)    ELLIOT JAMES
Last name        MORRES
Gender           Male
Birth year       1831
Age              64
Death quarter    4
Death year       1895
District         Bath
County           Somerset
Volume           5C
Page             372
Country          England
Record set       England & Wales Deaths 1837-2007
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His marriage is definitely ‘Morris’ on the handwritten index, his death is equally definitely ‘Morres’ on the typed index.  The 1881 LDS census gives him as ‘Morres’ so that is in the majority of the free databases!

In 1881 he was 49, born in Reading, Berks, BA Oxon and late a lieut in 47th regt and living with his wife, 2 daus and wife’s sister with 3 servants at No 1 Raglan Villas, Raglan Rd, Lycombe and Widcombe, Som.  The daus were:
Mary A Morres, aged 22 and born in Bath, Som,
Susan E Morres, aged 20, born in Bath, Som,
His sister-in-law was Francis [sic] J Hill, aged 36, born in Combe Bisset, Wilts.

Robin Hill reports that there was a third daughter, Isabel Charlotte b. 11 Jan 1863 and registered and baptised in Wokingham (why?).  In 1881, Isabel was 18 and a niece staying with Robert Eliot Morres, Rector of Langridge, Somerset and his ten children and six servants plus a governess.

In 1871 he and his eldest daughter Mary Ann were staying with his father Elliot Morres in Wokingham.  Also in the house was a boarder in the form of Isabella Lybbe Powis born in Southgate, undoubtedly a daughter of Henry Philip Powys of Broomfield and Hardwick.
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There is a grave with a family tombstone on it in the Cemetery of All Saint’s church, Wokingham and listing these on it:

full name age birth death relationship
Mary Morres 30 1805 1835 first name on monument
Philip Morres 31 1811 1842 brother of Mary Morres
Augusta Morres 2 1843 1845 daughter of Mary Morres
Beatrice Morres 76 1791 1867 wife of Mary Morres
Elliot Morres 90 1794 1884 unknown
Margaret Morres 1869 unknown

In fact my opinion is that Mary was the first wife of Elliot Morres and Beatrice Morres was not the wife of Mary Morres (!) but the second wife of Elliot Morres.

Philip was more likely the brother of Elliot Morres.

Augusta was possibly the daughter of Beatrice Morres ndee Fletcher.
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This might be worth following up:

Worcestershire, Tenbury - grateful heir ? | Flickr - Photo ...
https://www.flickr.com/photos/52219527@N00/8707853772
59 views · Added 12/10/2007
12/10/2007, revised 15 Sep 2019:
"SACRED is the Memory of Philip, Mary and Margaret, children of Michael and Margaret Morris, late of Rochford in the County of Hereford; (who are buried in this Church-yard) This Tablet is erected by their grateful Nephew Lieut. Elliot Morres. R.N. AD 1837."

This is in Tenbury, Worcestershire
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His probate index:

MORRES  Elliot James of Raglan villa Bath esquire died 5 November 1895  Probate Bristol 26 November to Susan Perry Morres widow
Effects  £1370 1s. 7d.
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