1858: born 27 February, see passport application 1882.

1860 census Philadelphia: Isabella Thompson, 30, b. in Pa, Wm Thompson, 5, <David Thompson, 2>, Sarah McNully, 18, Servant, David Thompson, 40, Clerk

1870 census Philadelphia: David Thompson, 49, b. in Penn., Dry Goods, --, Real Estate 15.000, Personal Estate 2000, Mary W Seip, 40, b. in Penn., Keeping house, Wn Thompson, 14, <David S Thompson, 12, Attending School>, Frank B Thompson, 9, Mary H Seip, 12

1880 census Philadelphia, 605 N 10th Street: David Thompson, 58, Gentleman, <David S. Thompson, 22, Banker>, Frank B. Thompson, 20, Dry Goods, Mary W Seip, 55, House Keeping, Sophie D. Wagner, 36, Servant

1882 (3 February): <David Seip Thompson>, b. 27 Feb 1858 in Penn. Age 24, stature 5 feet 9,5 inches, forehead High, eyes Dark Brown, nose Retroussè, mouth Large, chin Rounded, hair Black, complexion Dark, face Oval, about to travel abroad «to Europe, with my wife «Mary» aged 20 years.» (US Passport Applications) (passport was issued 5 May 1882)

1882: <David S Thompson>, Phil., married 17 May 1882 to Mary H Taylor, Phil., in Spring Garden Methodist Episcopal Church (Penn. & NJ Church and Town Records)

1882: <Mr D S Thompson, 23, Merchant>, Mrs D S Thompson, 19, Wife, arriving from Liverpool to Philadelphia 10 Oct 1882 on board «Illinois» (Penn. Passenger Lists)

1882: <When Mr. D. S. Thompson, the Third street broker, was in Europe he tendered Mr. William Steinitz, the champion chess player, an invitation to visit this country and be the guest of the Philadelphia Chess Club. Accompanying the invitation was an offer of $500 to defray his expenses, the understanding being that matches would be arranged for him while in Philadelphia with members of the club.> (Philadelphia Inquirer, 17 Oct 1882)

1882 directory Philadelphia: <David S. Thompson, broker>, 16 S 3d, h 605 N 10th.

1883 directory Philadelphia: <David S. Thompson, broker>, 16 S 3d, h 2034 Mt. Vernon.

1885: <A young Philadelphian stock operator, David S. Thompson, failed for 4,000 shares of Jersey Central stock Saturday. He had sold what he could not deliver.> (Cleveland Leader, 23 June 1885, p. 7)

1888: <Philadelphia, March 5. – The suspension of David Thompson, a stock broker, was announced this afternoon in the Board of Brokers, and about 3,000 shares of Reading and Oregon and Transcontinental stock were sold under the rule for his account. He had been «long» of the market, and the sharp decline of the last few days caught him unprepared for the emergency. Mr. Thompson has been in a similar predicament before and settled with his creditors. It is thought that he will do so again, as his liabilities, which, it is thought, will not exceed $15,000, are all in the Exchange.> (New York Tribune, 6 March 1888)

1890: David S. Thompson mentioned among the prominent players of the Franklin Chess Club in Philadelphia. (Philadelphia Inquirer, 12 Jan 1890)

1899: <David S. Thompson>, 42, 1424 Mt Vernon, married (again!) 7 Sep 1899 to Mary H Thompson, 38, in Spring Garden Methodist Episcopal Church (Penn. & NJ Church and Town Records)

1900 census Mount Vernon Philadelphia (Ward 15 House 1424): <David S. Thompson, 42, b. Feb 1858 in Penn., Stock Broker>, Mary H Thompson, Wife, 38, b. Nov 1861 in Penn., Elizabeth T., 16, David 13, Mary B 10, Lucile 7 (children)

1903: <Death of David S. Thompson. After a lingering illness David S. Thompson died yesterday at his home, No. 1424 Mt. Vernon street. Mr. Thompson was formerly a member of the Philadelphia Stock Exchange and of late years had been connected with the firm of E. C. Miller & Co. He had many warm friends whose interests he looked after in the stock market. Mr. Thompson was a consistent and a persistent bull on Philadelphia and Erie and for years he worked to have it made a dividend payer, which it has finally become. Mr. Thompson is survived by a widow and several children.> (Philadelphia Inquirer, 19 July 1903)