Thank you for your reply, Sandra. This is what I had gleaned from Brian Lawson's microsite, posts on this board and censuses:

(1871) RG10/5775 f.47 p.5 sch.26 (District 10)
R~~ Murray, widow 66 born Belfast
Margaret, widow, d, 32, born Douglas
Wm aged 7, gson
Cathr McMullin 5, gdau

CUNNINGHAME, Nicholas, 14 Jun 1892, D, RC, 57, married MC MULLIN, Catherine

CUNNINGHAM, Margaret A 5 Jan 1893 Dou d/o CUNNINGHAM, Nicholas & MC MULLEN, Catherine
CUNNINGHAM, Margaret Anne, 11 mos, bur. Bra, 29 Dec 1893 No MI
CUNNINGHAM, George Alf 12 Sep 1895 Dou s/o CUNNINGHAM, Nicholas & MC MULLEN, Catherine
CUNNINGHAM, George Alfred, 4 mos, bur. Bra, 30 Jan 1896 No MI
CUNNINGHAM, Richard 13 Jan 1897 Dou s/o CUNNINGHAM, Nicholas & MC MULLEN, Catherine
CUNNINGHAM, Richard, 40, bur. Dbc, 9 Jul 1937
CUNNINGHAM, Catherine 7 May 1898 Dou d/o CUNNINGHAM, Nicholas & MC MULLEN, Catherine
CUNNINGHAM, Fanny 17 Mar 1900 Dou d/o CUNNINGHAM, Nicholas & MC MULLEN, Catherine

CUNNINGHAM, Catherine, 34, bur. Bra, 12 Apr 1900 No MI

(1901) 25 St George’s Walk, Douglas RG13/5305 f115 p24 sch156 ED6 (3 rooms)
Eleanor McQuiggin H m 25 Douglas (Eng) [1876]
Frances Cunningham adopted dau. 1 Douglas

(1901) 15 Shaw’s Brow, Douglas CP Onchan/EP St Georges) RG13/5305 f.94 p.23 sch 172
[sch.170-172, 22 people]
William McMullen H m 36 Plasterer Douglas Eng
Annie “ w m 37 “ “
James ~ “ nephew 11 “ “
Richard Cunningham nephew 4 “ “
Catherine M. “ niece 3 “ “

MC MULLEN, William John, 28 Jan 1893, D, dsm, 28, mar.HAMMOND, Annie

Do you know anything about the McQuiggins? I presume they brought Francis up as she was listed as an adopted daughter in 1901.