https://www.unf.edu/floridahistoryonline/Plantations/plantations/Indigo_Cultivation_and_Processing.htm
http://www.waymarking.com/waymarks/WMEM3A
http://www.staugustine.com/article/20110620/NEWS/306209974
https://www.volusia.org/residents/history/volusia-stories/plantation-ruins/indigo-rice.stml
https://www.floridamemory.com/photographiccollection/photo_exhibits/plantations/plantations2.php
https://www.jstor.org/stable/2511598?seq=1#page_scan_tab_contents
https://www.jstor.org/stable/4230975?seq=1#page_scan_tab_contents
http://www.dejaelaine.com/plantations.html
https://en.wikipedia.org/wiki/Kingsley_Plantation
https://www.visitstaugustine.com/history/old-st-augustine/minorcans-augustine.php
https://www.google.com/search?q=history+indigo+plantations+north+florida&tbm=isch&tbo=u&source=univ&sa=X&ved=2ahUKEwiOuaS8w6neAhVQn-AKHYWCBxAQsAR6BAgGEAE&biw=1285&bih=859
https://www.rom.on.ca/sites/default/files/imce/touchedbyindigo_original.pdf