I used Simplicity 5517, dated 1973 and altered the pattern since it was a bit too small. At least according to my normal standards. In the end I took out about five inches of width in the waist and hip area, but now they have grown a bit more, and are too big again. Jeez Louise! Well, they are very comfy now but I can't wait to see what happens after I wash them! (This must be the first time ever I wish for a pair of pants to shrink when I wash them!)
For more pictures, a lot more text and earlier ramblings of mine, stop by at Sew Ewellyn!