George's first stroke occurred in 1890, after a global speaking tour concerning land rights and the relationship between rent and poverty. This stroke greatly weakened him, and he never truly recovered. Despite this, George tried to remain active in politics. Against the advice of his doctors, George campaigned for New York City mayor again in 1897, this time as an Independent Democrat, saying, "I will make the race if I die for it." The strain of the campaign precipitated a second stroke, leading to his death four days before the election.
Joseph Jay "J.J." Pastoriza led a successful Georgist movement in Houston. Though the Georgist club, the Houston Single Tax League, started there in 1890, Pastoriza lent use of his property to the league in 1903. He retired from the printing business in 1906 in order to dedicate his life to public service, then traveled the United States and Europe while studying various systems of taxing property. He returned to Houston and served as Houston Tax Commissioner from 1911 through 1917. He introduced his "Houston Plan of Taxation" in 1912: improvements to land and merchants' inventories were taxed at 25 percent of appraised value, unimproved land was taxed at 70 percent of appraisal, and personal property was exempt. However, in 1915, two courts ruled that the Houston Plan violated the Texas Constitution.
Another spirited response came from British biologist T.H. Huxley in his article "Capital – the Mother of Labour," published in 1890 in the journal The Nineteenth Century. Huxley used the scientific principles of energy to undermine George's theory, arguing that, energetically speaking, labor is unproductive.