1841 census return: HO107/662/5 folio 7 page 7
Finsbury, Clerkenwell, 62 Southampton Street
Leonard Laidman, 35, Solicitors Agent, N
Patience Laidman, 35, N
Leonard Laidman, 12, N
Frederick Laidman, 10, N
Charles Laidman, 8, N
Henry Laidman, 5, N
Julia Laidman, 3, Y
Mary Laidman, 2, Y
Eliza Laidman, 4m, Y
Mary Cobb, 15, N
John Thorpe, 25, [illegible word], N

1851 census return: HO107/1498 folio 378 page 15
10 [?Sorrano] Avenue, St. Pancras
Leonard Laidman, Head, Mar, 44, Law Stationer, born Southwark
Patience, Wife, Mar, 51 born Wilts Trowbridge
Leonard, Son, U, 22, Clerk in Law Society, born Southwark - Dover Rd.
Frederick William, Son, U, 21, Law Stationer, born London - Bishopgate [sic]
Charles, Son, U, 18, Law Stationer app[rentice], born Surrey - Blackfriars Rd.
Henry, Son, U, 16, Solrs. General Clerk, born London 80 Cheapside
Julia, daur, 14, Scholar, born Middx. Pentonville
Mary Ann, daur, 12, Scholar, born Middx. Pentonville
Eliza Martha, daur, 10, Scholar, born Middx. Pentonville
John, Son, 7, Scholar, born London Chancery Lane
Charles Field, Nephew, 17, Law Stationer App[rentice], born Dorsetshire - Poole
Amelia Hutchinson, Servt., 18, General Servant, born London - Farringdon Str.

1861 Census Returns RG9/456 folio 24 page 41
Surbiton Park, Surbiton, Surrey
Henry Laidman, head, unm. 26, Articled Clerk to Solicitor, born St.Marylebone, Middx
Leonard Laidman, father married, 52, Stationer, born Borough, Surrey
Patience Laidman, mother, married, born Trowbridge, Wilts
Leonard Laidman, brother, unm. 32, Clerk to Incorpd. Law Society Chancery Lane London, born St. George, Middx
Frederick Wm. Laidman, brother, unm. 31, Solicitor's Managing Clerk, born Bishopsgate, Middx
Charles Laidman, brother, unm. 27, Stationer, born Blackfriars, Surrey
Mary A. Laidman, sister, unm. 22, born Clerkenwell, Middx
Eliza M. Laidman, sister, unm. 20, born Clerkenwell, Middx
John Laidman, brother, unm. 16, Solicitor's General Clerk, born St. Dunstan's, Middx

Mentioned in Will of his brother John Laidman dated 12 Dec 1877