Agnew early career 

I'm a bit loath to edit the Agnew article when you and TRM are making such as good job of putting it into some order. But as someone thought the early career stuff was a bit thin you might be interested in a snippet I found in The Times about his injury-proneness early on. It's from the issue of 28 October 1980 under the heading "Another setback for Agnew" (page 9, issue No 60761) and reads:
The promising Leicestershire fast bowler, Jonathan Agnew, aged 22 [sic], is being flown home from Australia after contracting glandular fever. He was to have spent the winter playing for a club side.
Mike Turner, the Leicestershire secretary-manager, said: "It's a great disappointment because Jonathan had just returned to his best form after battling for 12 months to recover from a back injury."
I'll go on perusing copies of The Times from his early cricket days and will post anything sensible I find here, or on the talk page if you prefer.