"Archival sources
National Library of Ireland: Copy of confirmation of arms to descendants of John McMurray & wife Margaret (Allen), daughter of Robert Allen & to their son Robert McMurray of Roxborough House, Limerick & Patrickswell, 1 Mar 1862. GO MS 108:400-401"
http://landedestates.nuigalway.ie/LandedEstates/jsp/estate-show.jsp?id=2673Appears to confirm "Robert Mcmurray" as the son of "John McMurray" and "Margaret Allen"
"McMURRAY (confirmed to ROBERT McMURRAY, Esq., of Roxborough House, Limerick,
and Patrickswell, co. Limerick) Ar. a lion ramp. az. on a chief of the
second three mullets pierced of the field. Crest - A demi lion ramp. guard.
gu. holding a Lochaber axe, and charged on the shoulder with a rose ar.
Motto- Virtute fideque."
For any person to have a right to a coat of arms they must either have had it granted to them or be descended in the legitimate male line from a person to whom arms were granted or confirmed in the past.
"Virtute Fideque" seems to be the motto of the Murrays of Elibank, Scotland too?
Robert McMurray Esq of Roxborough house (born 1806) is of Scottish ancestry and decend from John De Moreff of Blackbarony who swore fealty to Edward the 1st in 1296. ((Called the only son here?))
http://www.mocavo.co.uk/The-County-Families-of-the-United-Kingdom-1st-Ed/280142/461"Only son of John McMurray of Marlmount, county Down Esq with Margaret d of Robert Allen Esq of Ballygrote, County Down
http://www.mocavo.com/The-County-Families-of-the-United-Kingdom-Ed-6/413441/6721st marriage
March 17 1838
On the 10th inst., at St. Bride's Church, Liverpool, by the Rev. James Haldane Stewart, A.M., ROBERT McMURRAY, ESQ., Demerara and Liverpool, to SARAH ANNE, fourth daughter of THOMAS KNOX HANNYNGTON, ESQ., Castle, Dungannon, and granddaughter of the late ARCHDEACON CAULFIELD
((Demerara is British Guiana, perhaps he was making money here?))
Marriage: 10 Mar 1838 St Bride, Toxteth, Lancashire, England
Robert McMurray - full age, Merchant, Bachelor, Rodney Street
Sarah Anne Hannyngton - full age, Spinster, Dungannon, Ireland
Groom's Father: John McMurray, Gentleman
Bride's Father: Thomas Knox Hannyngton, Gentleman
Witness: Jno. Ripley; Euphemia Gordon Hannyngton
Married by Licence by: J. H. Stewart
Register: Marriages 1837 - 1842, Page 33, Entry 66
Source: LDS Film 1546289
2nd Marriage
1844
Robert McMurray and Elizabeth Ann Hayton dau. of John.W.Hayton, Greenfeild Abbey of County Flintshire, England.