After over a month of trying, little James can finally crawl! Thursday I felt it time to officially declare that he could pull up to stand (on his feet now), and while I saw his first real crawling steps that day as well, it wasn't until Friday that he made repeated efforts. He still only goes as far as the toy he wants, but that's just fine with me.
Please note, his crawling style is on all 4s. The girls had a 2 hands, 1 knee, 1 foot approach.