He played at representative level for Great Britain, England, Rugby League XIII and Lancashire, and at club level for Widnes (captain), as a prop, or second-row.
[3] Nat Silcock played at prop in Lancashire's 7-5 victory over Australia in the 1937–38 Kangaroo tour match at Wilderspool Stadium, Warrington on Wednesday 29 September 1937, in front of a crowd of 16,250.
[6] Nat Silcock played second-row in Widnes' 10-3 victory over St. Helens in the 1929–30 Challenge Cup Final during the 1929–30 season at Wembley Stadium, London in front of a crowd of 36,544, played prop in the 5-11 defeat by Hunslet in the 1933–34 Challenge Cup Final during the 1933–34 season at Wembley Stadium, London on Saturday 5 May 1934, and played, was captain, and scored the fourth try in the 18-5 victory over Keighley in the 1936–37 Challenge Cup Final during the 1936–37 season at Wembley Stadium, London on Saturday 8 May 1937.
Nat Silcock played at prop in Widnes' 4-5 defeat by Wigan in the 1928–29 Lancashire Cup Final during the 1928–29 season at Wilderspool Stadium, Warrington on Saturday 24 November 1928.
(née, Andrews) was registered during fourth ¼ 1926 in Prescot district.