1900

n.d.: Richardson's population is 147 persons.

n.d.:Richardson Independent School District founded (possibly earlier, but not as early as 1854).

Early February: The Wheeler Schoolhouse burns down (said to be the work of arsonists).

August 10: Benjamin F. Bowser sells four acres of land to R.I.S.D. trustees, to be site of new schoolhouse. (Dallas County, Texas Deed Book 251, pp. 421-2.)

September 16: New Richardson School is opened for fall classes.

1901

May 2: The Richardson Telephone Company is chartered by the State of Texas.

October 12: Sam P. Harben publishes first issue of The Richardson Echo. About this same time, The Richardson Register ceases publication.

December 11: Sam P. Harben purchases Lot 17, Block 5 from Dr. W. E. Rucker, to which location he moves the Harben Drugstore, previously at Lot 8, Block 4. (Dallas County, Texas Deed Book 273, pp. 372-3.)

1904

July 5: Thomas "Newt" Harris purchases Lot 13, Block 4, on Smith Street from C. F. Stratton and M. W. Lowery, where, presumably, he opens a barbershop that he operates until 1906. (Dallas County, Texas Deed Book 307. P. 366.)

1905

April 5: On his way to Dallas, President Theodore Roosevelt's special train stops for a few moments at the depot in Richardson, so that he can deliver some brief remarks to an awaiting throng of citizens.

1906

March 6: Dr. R. P. Harben buys Lot 14, Block 4, where sons Jess and Oliver operate a grocery store until 1909. (Dallas County, Texas Deed Book 347. P. 605.)

April 16: After selling Lot 13, Block 4 on Smith Street, "Newt Harris" buys Lot 12, Block 4 from F. P. Olcott, where Harris opens a barbershop that he operates until 1947. (Dallas County, Texas Deed Book 440, p. 47 and Deed Book 432, p. 183.)

November 29: Sam P. Harben buys Lot 16, Block 4 (next door to Harben's drugstore) from Henry and Katie Pistole. (Dallas County, Texas Deed Book 392, p. 201.)

1907

February 15, 1907: J. E. Day buys Lots 15 and 16, Block 5, from Sam P. Harben. (Dallas County, Texas Deed Book 391, p. 405.)

September 5: H&TC demolishes original depot and builds a new one on the opposite (north) side of Smith Street (now East Main).

1908

July 1: Richardson becomes a stop on the new Texas Traction Company's Interurban line from Dallas to Denison.

1909

n.d.: Richardson's roads are graveled.

n.d.: Texas Traction Company (Interurban) builds a passenger depot at Richardson, on Lot 9, Block 17, purchased from Sam P. Harben and wife (Dallas County, Texas Deed Book 463, p. 299.)

n.d.: Mount Calvary Baptist Church building destroyed in a storm.

n.d.: Firm of Harris-Harben begins selling lots in new North Richardson addition.

n.d.: Richardson Business Men's Club sponsors first "Trades Day."

n.d.: Lots in new North Richardson addition are offered for sale.

n.d.:The Mothers Club is formed under the leadership of Mrs. W. S. Parks.

n.d.: New brick-built Mount Calvary Baptist Church opened for services.

n.d.: New wood-frame Richardson Presbyterian Church built.