Items

• [CJ003AFT], Telephone Message from Thomas Alva Edison to William Preston Swarts, October 16th, 1891
  1891-10-16
• [LB052630], Letter from Thomas Alva Edison, Alfred Ord Tate to New Jersey and Pennsylvania Concentrating Works, William Preston Swarts, October 14th, 1891
  1891-10-14
• [MD002021], Letter from Walter Seeley Mallory to William Preston Swarts, September 23rd, 1889
  1889-09-23
• [MD002023], Letter from Walter Seeley Mallory to William Preston Swarts, September 28th, 1889
  1889-09-28
• [MD002029], Letter from Walter Seeley Mallory to William Preston Swarts, October 1st, 1889
  1889-10-01
• [MD002041], Letter from Walter Seeley Mallory to William Preston Swarts, October 21st, 1889
  1889-10-21
• [MD002135], Letter from Walter Seeley Mallory to William Preston Swarts, November 26th, 1889
  1889-11-26
• [MD002236], Letter from Walter Seeley Mallory to William Preston Swarts, January 18th, 1890
  1890-01-18
• [MD002656], Letter from Walter Seeley Mallory to William Preston Swarts, June 13th, 1890
  1890-06-13