The guy who invented the flush toilet.
I was going to say Thomas Crapper, but it seems the credit really belongs to one Alexander Cummings.
"...Cummings is generally credited with inventing (or, at least, patenting) the first flush mechanism in 1775."
Too many to name them all, but Corrie Ten Boom comes to mind.
I'm a big fan of George Washington.
I would thank van Gogh.
Adam for gettin it on with Eve.
For all the military that have fought for our freedom, those that gave their lives. Forever thankful
Edison, he lit us up..........