Thank you very much for such a prompt and informative reply. I am a little stunned !
I only found John Eyre 1820 and Thomas 1823 from the Sheffield Indexers lists. The other three Eyres you mention are completely new to me and I have never seen them in any records. Can i ask please where exactly you found them ?
I found the baptisms on Findmypast and also the following...
Marriage, 21 July 1811, Sheffield Parish Church.
John Eyre, bat, otp to Mary Fox, spin, otp, both made their mark.