User talk:Surd1111

Hello, I'm DonFB. I wanted to let you know that one or more of your recent contributions to Katherine Johnson‎ have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Thanks. DonFB (talk) 08:17, 14 March 2017 (UTC)