Jean, I just picked up my family research after a year off and saw your post. I have to tell you there are maybe hundreds of us that are descendants of John Clark and Amelia Charlotte Junod Kitchen and none of us that I know of have ever found the parents of John. I know myself I spent nearly 7 years researching everything that I could find back in 2000-2005. It was just so frustrating. My line runs down through Henry Neff Kitchen and Sarah Elizabeth Rainey. Their daughter Beatrice Evelyn Kitchen Ryker is my great grandmother who passed in 1966 when I was 2 years old. My email has and will remain the same should you find something there are a flock of family that would appreciate a new lead and we will do like wise.
It's actually refreshing to see a 2010 post of someone that is looking for John. :)
I just know one of these days someone is going to send a note that says, "I've had the information all along, here it is"hahaha, would that be wonderful?!