Jerry, on the profile page you will see a set of tabs across the top. One of those is Edit, which you click to get to the editing page. Another is Changes and you can click that to see a complete history of all changes that were ever made to the profile. You can click any change to see exactly what was done and who did it.
That is how I was able to see that you were the only one who ever made changes, and Dale also checked the change page, and Ros even pasted here the line listing one of the changes you made.