↑1861 Census: "1861 Scotland Census" Parish: New Monkland; ED: 14; Page: 36; Line: 18; Roll: CSSCT1861_117 Ancestry Record 1080 #328842 (accessed 6 February 2022) Name: Isabella Allan; Age: 9; Estimated Birth Year: abt 1852; Relationship: Daughter; Father's Name: William Allan; Mother's Name: Isabella Allan; Gender: Female; Where born: Ireland; Registration Number: 651/2; Registration district: New Monkland Landward; Civil parish: New Monkland; County: Lanarkshire; Address: 3537-(19) Collston Row; ED: 14; Household schedule number: 133; Line: 18; Roll: CSSCT1861_117; Household Members Age Relationship: William Allan 50 Head Isabella Allan 50 Wife Mary Allan 18 Daughter Thomas Allan 14 Son James Allan 12 Son Isabella Allan 9 Daughter Duncan Allan 5 Son.
↑Marriage: "Scotland, Select Marriages, 1561-1910" Ancestry Record 60144 #1997963 (accessed 6 February 2022) Name: Isabella Allan; Gender: Female; Marriage Date: 28 Jun 1873; Marriage Place: Beith, Ayr, Scotland; Spouse: William Cambell.
↑ “Statutory registers – Marriages” database, National Records of Scotland, (https://www.scotlandspeople.gov.uk/: accessed 6 Feb 2022), ISABELLA ALLAN and WILLIAM CAMPBELL, 1873, Beith (Ayr); Reference Number: 581/ 18.
↑ "Statutory registers - Deaths" database, National Records of Scotland, Scotlands People (https://www.scotlandspeople.gov.uk/: accessed 6 Feb 2022), CAMPBELL, ISABELLA; Age 74; Mothers' Maiden surname MCPHAIL; 1922; Kilmeny (Argyll); Reference Number 543/ 1.