1861 Census IoM; Parish, Malew; Town, Catletown; RG_09_4414_16b_p26; Castletown _1_140; Malew Street, W Side: - Margt Quilliam, Head, Widow, 72, pauper, b.Castletown.
1851 Census IoM; Parish, Malew; Town, Castletown; HO_107_2526_139b_p15; Castletown_2_62; 39, Malew Street:- Margaret Quilliam, Head, Wid, 63, Ag Lab Wid, b.Castletown; James Quilliam, Son, Mar, 20, Marble Mason, b. Castletown; Elenor Quilliam, Daughter-in-Law, Mar, 21, b.Santon.
1841 Census IoM; Parish, Malew; Town, Castletown; HO_107-1464/5_25; Castletown_2_p12; Malew Street:- Robert Quilliam, 50, Ag Lab, b.IoM; James Quilliam, 10, b.IoM; Margaret Quilliam, 50, b.IoM
Hope this helps
Regards
JohnL