Is requestor a correct spelling

Answer 1

It appears that this is two different spellings for the same word.

http://www.merriam-webster.com/dictionary/requestor

However, if you search "requestor" on Dictionary.com, it doesn't find it. It only recognizes "requester". It seems that more dictionaries have eee-arr, and it may be the more common usage.

References:

http://in.answers.Yahoo.com/question/index?qid=20081118081010AAAOL1y

http://www.englishforums.com/English/RequesterOrRequestor/jcpz/post.htm

http://209.85.173.132/search?q=cache:WXMzYnSYJW0J:markmail.org/message/fqbujb73dqxcg3d6+requester+spelling+uk&cd=2&hl=en&ct=clnk&gl=us&client=firefox-a

-(theReal)Wireball(.com)

Answer 2

Requester is the correct spelling.