I did a quick search and Good Night Irene is another name for Arkansas Crossroads .I have made several and will likely make more. Hang in there and remember Sewingsuz that accuracy is goal but the product is a beautiful quilt that will warm and please the heart. Post a photo when you're ready.
PS. I found that using the webbing techniques when piecing the 2.5 blocks blocks makes them more accurate and it goes faster. That is my favorite part. That and watching my 2.5 blocks disappear from their bins.