501. Ruth M. Kelley Format: Photographs Collection: William Mahoney Collection Date: 1914 Institution: Arlington Historical Society
502. R.W. Shattuck & Co. Format: Photographs Collection: William Mahoney Collection Date: 1850–1870 Institution: Arlington Historical Society
503. S. Potter Format: Photographs Collection: William Mahoney Collection Institution: Arlington Historical Society
504. Scrapbook Format: Albums/Scrapbooks Collection: William Mahoney Collection Date: 1897 Institution: Arlington Historical Society
505. Service Cars #6357, #3204 Format: Photographs Collection: William Mahoney Collection Date: 1940–1960 Institution: Arlington Historical Society
506. The Silver Medal Creator: John Townsend Trowbridge Format: Books Collection: William Mahoney Collection Date: 1881 Institution: Arlington Historical Society
507. The South: A Tour Of It's Battle-Fields And Ruined Cities, A Journey Through The Desolated States, And Talks With The People Creator: John Townsend Trowbridge Format: Books Collection: William Mahoney Collection Date: 1867 Institution: Arlington Historical Society
508. Spy Pond from Mr Teely's House Format: Photographs Collection: William Mahoney Collection Institution: Arlington Historical Society
509. Spy Pond Ice Format: Photographs Collection: William Mahoney Collection Date: February 9, 1925 Institution: Arlington Historical Society
510. Storms; Their Nature, Classification and Laws Creator: Blasius, William Format: Books Collection: William Mahoney Collection Date: [ca. 1875] Institution: Arlington Historical Society
511. Street, showing Church and A&P Supermarket Format: Photographs Collection: William Mahoney Collection Date: 1940–1960 Institution: Arlington Historical Society
512. Streetcar, Arlington Center Format: Photographs Collection: William Mahoney Collection Institution: Arlington Historical Society
513. Swan, B. Frank Format: Photographs Collection: William Mahoney Collection Date: 1882 Institution: Arlington Historical Society
514. Symmes Hospital Drawing Format: Photographs Collection: William Mahoney Collection Date: March 17, 1919 Institution: Arlington Historical Society
515. Telephone Company Garage on Broadway Format: Photographs Collection: William Mahoney Collection Date: 1957 Institution: Arlington Historical Society
516. Telephone Garage on Broadway Format: Photographs Collection: William Mahoney Collection Date: 1940–1970 Institution: Arlington Historical Society
517. Three Boys On An Electrical Boat Creator: John Townsend Trowbridge Format: Books Collection: William Mahoney Collection Date: [ca. 1894] Institution: Arlington Historical Society
518. The Three Scouts Creator: John Townsend Trowbridge Format: Books Collection: William Mahoney Collection Date: 1892 Institution: Arlington Historical Society
519. Ticket Format: Objects/Artifacts Collection: William Mahoney Collection Date: April 6, 1878 Institution: Arlington Historical Society
520. Ticket Format: Objects/Artifacts Collection: William Mahoney Collection Date: January 1, 1849 Institution: Arlington Historical Society
