- [S93] Weston Colville, Cambridgeshire - Transcript of Parish Register, (Cambridgeshire Family History Society, CD-ROM;), baptism of Iris Ellen Balls, of Frank William Victor & Katherine Emily of Church End Cottages Weston Colville lab, 2 Nov 1924 (Reliability: 3).
- [S112] Civil Registration Death Indexes 1837-, General Register Office, death registration of Iris Ellen Miller, born 13 Sep 1924, Feb 1997, Cambridge D45C 1 (Reliability: 2).
- [S113] Civil Registration Marriage Indexes, General Register Office, (1837-;), marriage of Frank W.V. Balls & Katherine E. Carter, Linton 3b 815, March quarter 1922 (Reliability: 2).
- [S54] Carlton cum Willingham, Cambridgeshire - Transcript of Parish Register, (Cambridgeshire Family History Society, CD-ROM;), marriage of Frank William Victor Balls, 25 bac lab of Weston Colville son of James lab, & Katherine Emily Carter, 28 sp dau of Richard publican (decd), wits: Amy E Balls, Herbert Taylor (Reliability: 3).
- [S42] Births, Marriages and Deaths - Cambridgeshire Index Project, Cambridgeshire County Council, (http://www.cambridgeshire.gov.uk/sub/register/cambsindex.htm;), marriage of Derek E Miller & Iris E Balls, Cambridge 331/CE146/01/317/1, 1954 (Reliability: 2).