They dont appear on the programme , but Hawkwind  lists show they played on both Saturday and Sunday and who am I to disagree? Possibly they did a free gig outside the festival as they did at the Isle of Wight . 
A couple of folks have confirmed this , including Phil Hooper who states, " Hawkwind were definitely playing outside Bath , not on the bill . I believe along with the Pink Fairies. "

For certain Pink Fairies played outside the venue, I saw them. Cannot add to Hawkwind though.

Andy Mitchell

More info on the Fairies at Bath and details of their other 1970s merry japes can be found here at Philm Phreaks
 

Personnel for Hawkwind Nov 69- July 1970.

Huw Lloyd Langton -Guitar. 
Dick Taylor-Guitar.
Tery Ollis- Drums. 
Nik Turner- Sax /vocal. 
Dave Brock- Guitar /vocal. 
Dik Mik- electronics. 
John Harrison - bass. 

No set lists exist as far as I can ascertain for either Bath show.  Here however is a representative setlist of 1970's Hawkwind shows , probably incomplete.
 

Be Yourself 
Paranoia 
Reason Is 
Seeing It as You Really Are