[3] Peter Small's birth was registered in Pontefract district, West Riding of Yorkshire, England, and he was a pupil at Airedale High School.
Peter Small won a cap playing left wing and scored a try for Great Britain while at Castleford in the 8–27 defeat by New Zealand at Carlaw Park, Auckland on Saturday 11 August 1962.
[3] Peter Small won a cap for Yorkshire while at Castleford playing left-second-row in the 15–14 victory over Australia at Belle Vue, Wakefield on Wednesday 4 October 1967.
[5] Peter Small played left-second-row in Castleford's 11–22 defeat by Leeds in the 1968 Yorkshire Cup Final during the 1968–69 season at Belle Vue, Wakefield on Saturday 19 October 1968.
Peter Small played loose forward in Castleford's 4–0 victory over St. Helens in the 1965 BBC2 Floodlit Trophy Final during the 1965–66 season at Knowsley Road, St. Helens on Tuesday 14 December 1965, and played right-second-row in the 7–2 victory over Swinton in the 1966 BBC2 Floodlit Trophy Final during the 1966–67 season at Wheldon Road, Castleford on Tuesday 20 December 1966.