JTS or simillar is John Killick

I keep finding these cheap and cheerfuls

I can't figure this one out, JTS or something.. I am sure I've seen this mark somewhere before but for the life of me I can't remember who it was. I think it also had a variation without the X or T on top. I though I'd seen it on the Potters Mark site but I've gone right through it again and no sign of it.

I know this one

http://newzealandpottery.forumotion.net/t3513-john-shirley-killick?highlight=killick

Thank you. I kept seeing that K as a T. I find sometimes the more I look at them the more confused I get.