C Stross E Bear K J Parker D L Sayers T Kingfisher Asimov Bujold Max Gladstone DW Jones Pratchett Stephen J Gould Steven Gould Niven Emma Lathen K Greenwood Ben Aaronovitch Deighton Stoppard John Barnes Sean Stewart Scalzi Daniel Abraham Bryson Tanya Huff Margaret Maron Melissa Scott

That's as many as will fit

Shit I really struggled to remember 30 and I've seen 3 on your list I'd just forgotten, Bryson being the dumbest forget, I've read at least ten of his books!