I updated this page just now based on this source published in July 2015. Still trying to track down the wealthiest person in Washington, D.C., as the lists I'm finding don't include that. Safehaven86 (talk) 16:08, 28 October 2015 (UTC)[reply]
And here's another source. It conflicts in some cases with the MarketWatch source. When it does conflict, I'm going to go with Forbes, because I think they are typically seen as the definitive authority on wealth ranking. Safehaven86 (talk) 16:10, 28 October 2015 (UTC)[reply]