[1] During his time at Derbyshire, he was partnered by Billy Bestwick in a dangerous fast-bowling partnership that never gained much reward because they had very small totals to bowl at.

[1] Though rarely judged a better bowler than Bestwick, it was owing to his superiority as a batsman and fieldsman that Warren gained the pair's only England cap against Australia at Headingley in 1905.

[1] A very tall, right-arm fast bowler who operated off a long, bounding approach, he took 5 for 57 in the first innings of a drawn match.

[4] Despite being 40 years old and not eligible to serve, Warren lied about his age and enlisted in the Royal Garrison Artillery during the First World War.

[1] He suffered upper body wounds from a shell blast in France in 1917 and was discharged in February 1919, three months after the armistice.