Welcome aboard JJ33. Take your time, have a browse about, get your feet under a table and order a beer (just for the medicinal purposes of shooting the breeze of course ).
never heard of creswell sorry. I teach physical intervention and restraint plus breakaway and self defense to care home workers and people working in education. i also practice Modern Defendo and qualified as an instructor with Bill Wolfe plus i used to be an open class amatuer boxer. When i was younger i practiced Jikishin Ju Jitsu also under a guy called terry parker
There's a Cresswell up in the Peak District, I've been there so I can attest to it's existence . For London tho, I did a Net-Fu search and only came up with Cresswell Gardens in our nations capital.