https://www.youtube.com/watch?v=QmWRU6D98MY
https://www.architecturalrecord.com/articles/6532-the-archrecord-interview-marshall-e-purnell-faia
https://www.fox17online.com/news/local-news/grand-rapids/grand-rapids-native-looks-back-on-working-on-the-mlk-monument-in-dc
https://www.youtube.com/watch?app=desktop&v=PlnIdPqppWg
https://storied.illinois.edu/illinois-storytellers-ed-jackson-jr/
https://vimeo.com/541888951
https://www.psucollegian.com/news/campus/mlk-memorial-executive-architect-ed-jackson-shares-successes-challenges-of-his-project/article_e0fc743e-fb99-11e7-ac57-8fee884d28f1.html
https://www.aarp.org/politics-society/rights/info-01-2011/the_making_of_the_martin_luther_king_jr_memorial.html
https://www.taipeitimes.com/News/feat/archives/2008/05/14/2003411856