Born at Bottom Row, Calverton on 8 June 1880, Isaac Marshall Harrison was a stylish bat and a brilliant field. He was given a trial in the Notts Colts XXII in 1900 and on a wicket greatly assisting the bowlers managed to score 15. A further trial was extended to him in 1901 in which season he appeared against Yorkshire Colts. He also obtained a position on the ground staff at Trent Bridge and made his debut in First-Class cricket for Notts v Middlesex at Lord’s in June 1901, appearing in place of JA Dixon. His Notts career was restricted to seven First-Class matches, the last being at Old Trafford versus Lancashire on August 1901. He scored 143 runs @14.30. and did not bowl. His top score was 33 which he achieved twice, versus Kent at Catford and the South Africans at Trent Bridge.
Harrison was retained on the Trent Bridge ground staff in 1902 but fell ill just after the start of the season and this illness in fact finished his active career.
At the close of the 1902 season, Notts met the XXII of Calverton & District for his benefit, the sum of £28-10-0 being raised for him.
He died at Calverton on 25 February 1909, aged 28 years.