Below is a list of genealogical books and other resources in the collection of the Watertown Historical Society.

• B0039 – Reunion of Descendants of Nathaniel Merriman at Wallingford CT 1913
• B0245 – The Hereditary Register of the United States of America 1972
• B0250 - Poems - Torch Bearer Etc. – Alma Roberts Giordan
• B0335 - Genealogy of the Noble Family – By Charles Merriman Nobel
• B0390 - Connecticut Genealogies 4 Volumes – Lewis Historical Publishing Company 1911
• B0402 - M'Fingal – John Trumbull
• B0411 - Conn. Union Soldiers in Southern Prisons 1
• B0415 - Genealogy of the Botsford Family by Botsford Family Historical Association
• B0422- Handbook of American Genealogy edited by Frederick Adams Virkus
• B0425 - Account Book Atwood Family Store with Genealogy
• B0430 - Weather Vanes – Charles Klamkin
• B0462 – Illustrated Popular Biography of Connecticut – Press of the Case, Lockwood & Brainard Company, 1891.
• B0466 – Record of Service of Connecticut Men in the Army and Navy of the United States During  the War of Rebellion
• B0507 - Scrapbook – Childs
• B0530 - Dr. Henry Skilton and Descendents 1717 - 1921 and Supplement 1, 1927
• B0533 – Palmer Records, First Palmer Family Reunion, Stonington CT 1881 by Noyes F. Palmer
• B0534 – Thomas Barnes of Hartford and Farmington Connecticut and Barnes Family Yearbook volumes 1,2, and 3. by Trescott C. Barnes
• B0540 - Records and Pictures Catherine Barnes Hall and Family
• B0553 - Conn. Ancestry (3 Vol.) Stamford Genealogy Soc.
• B0561 - Collectibles by Marion Klamkin
• B0562 – Trammels, Trenchers, & Tartlets – Tour of the Colonial Kitchen – by Joyce W. Carlo
• B0585 – A History of the Dorchester Pope Family – 1634-1888 – Charles Henry Pope
• B0586 - Pope, Percy, Hickcox Genealogy
• B0587 – Peck Genealogy – descendants of Joseph Peck
• B0592AB - History of the Simon Mills Family Vols. II & III
• B0604 - Skilton Genealogy - Teeth of the Rake (Appendix)
• B0607 - Warren's Household Physician
• B0656 – History and Genealogy - Scott Family
• B0705 - The Family of Ephraim and Lydia (Rolph) Smith
• B0706 – Watertown Brides 1928 to 2000 Scrapbook
• B0730 – Lynn Family Reunion 1909 to 1981, volume 1
• B0730 - Lynn Family Reunion Vol I
• B0737 - "Rainy" by Margaret Judd
• B0786 - Watertown Historic Dist.
• B0825 - Susie - Biographical Tales by Evelyn M. Copeland
• B0842 - Genealogy Book Delphis & Maria Roberts
• B0844A - The Buckingham Family : Book II by Robert J. Buckingham
• B0855 – Official Records of the Union And Confederate Navies in the War Of The Rebellion
• B0914 - A Family Chronicle - Copes Family History
• B0915 – Bolt From the Blue By Ernest Pintoff
• B0919 – Fred and Jennie a Civil War Love Story by Ernest Barker
• B0938 - Lynn Family Reunion Cookbook
• B0948 - Edmund Scott Family Index
• B0949 - The Family of Edmund Scott 1996 Edition
• B0954 – The One and Only Cook Book – The Cook Family of Watertown, descendants of Captain Aaron Cook.
• B0958 - Lynn Family Album by Barbara Blumb
• B0959 – The History of the Scarritt Clan in America, volumes 1 and 2, by Ralph E. Pearson
• B0969 - Scrap Book of Post marks
• B1085 - American and British Genealogy and Heraldry by P. William Filby
• B1086 - The Leatherman by Dick Gackenbach
• B1088 - Founders and Patriots of Early American Families - Meredith Colket
• B1090 – Massacre Daughter of War by Danielle Skjelver
• B1091 – Garnsey, Guernsey, Gurnsey Genealogical Dictionary by Judith L. Young-Thayer
• B1093 – Watertown Ecclesiastical Society – 1784 -1819 – Photo static Copy
• B1094 - Keilty Family Genealogy Album – Elly Keilty Swab
• B1099 - Weidemier Family Scrap Book – Walter Weidemier
• B1117 - Infantry Training and Combat World War II Europe, a collection of letter and memories of William Bassford.
• B1130 - Book - The Old Ninteenth The Story of the Second Connecticut Heavy Artillery in the Civil War
• B1725 - Watertown Collection Graduation/Wedding Invitations – Erma Scott Post
• BL003 - Descendants of Michael Dayton (1722-1776) Watertown Connecticut.
• BL004- The Hickcox Family – Compiled by Howard M. Hickcox
• BL005 - Genealogy from Russell Pope – handwritten notes in box
• BL005 – The Hotchkiss and the Hotchkiss Genealogy – (reel to reel tape)
• BL006- American Pedigree of the descendants of Seymour R. and Marilla A. Smith -  Compiled by Edward R. Smith
• BL007 – Vol 1, Watertown’s Early Families 4 Generations, Andrus to Dayton – Prepared by Edward R. Smith
• BL008 – Vol 2, Watertown’s Early Families 4 Generations, Deforest to Nettleton – Prepared by Edward R. Smith
• BL009 – Vol 3, Watertown’s Early Families 4 Generations, Platt to Woodward – Prepared by Edward R. Smith
• BL010 - Puritan Migration to Connecticut – the saga of the Seymour Family by Malcolm Seymour
• D0086 – First Census of the United States 1790 – Connecticut