During the early 20th century, Edward Simmonds was the head of the USDA's Plant Introduction Station in Miami, Florida. Due to the problems encountered with Indian-descended mango cultivars in Florida relating to their poor disease resistance and unreliable bearing habits, Simmonds began a mango breeding program in the 1920s where he sought to cross several cultivars of Indian descent with cultivars of southeast Asian origin. Simmonds hope was to develop hybrid varieties that would take on the best characteristics of both parents, with color and flavor of the Indian line and the flavor and disease resistance of the southeast Asian mangoes.
One of the results of the project was reportedly a 'Haden' by 'Carabao' (or Philippine-type mango) cross, grown on Simmonds private residence in Miami. The resulting fruit, later named 'Edward' after Edward Simmonds, was found to have outstanding eating qualities and was named and described by David Sturrock in the late 1930s  It was published in 1944, and commercial propagation began about 1948.
While generally agreed to have outstanding flavor and above average disease resistance, 'Edward' proved to be a poor producer in Florida despite consistent crops. The color of the fruit was not as outstanding as its parent 'Haden' either. This limited 'Edward' as a commercially grown mango for production purposes, though the variety remained popular as a dooryard tree for home growing.
'Edward' may have been one of the first hybrid crosses of Indian and Indochinese mangoes, though pedigree analysis conducted on the Florida mango cultivars has disputed the 'Carabao' parentage of 'Edward' while estimating that 'Haden' was indeed at least one of the parents. Several Florida mangoes are seedlings of 'Edward', including 'Duncan' and 'Young'. Like 'Edward', both were the result of a hybridization program themselves. 'Edward' may also be a parent of 'Angie' and 'Coconut Cream'.
Today 'Edward' is still propagated by major nurseries in Florida for home growing. 'Edward' trees are planted in the collections of the USDA's germplasm repository in Miami, the University of Florida's Tropical Research and Education Center in Homestead, Florida, and the Miami-Dade Fruit and Spice Park, also in Homestead.
The 'Edward' mango is oval/oblong shaped with an undulating surface, typically weighing between 16 to 22 oz. The skin possess little wax and is bright yellow in color with a pink to reddish tint with small white speckles. The flesh of the fruit is tender, fiberless, juicy, and deep yellow to orange in color. The flesh has a rich, sweet flavor with a mild, pleasant aroma and contains a monoembryonic seed. The fruit is widely considered to be one of the most excellent tasting mangoes in Florida. It typically matures from May to July in Florida.
- Guide to Mangos in Florida. Fairchild Tropical Gardens. ISBN 0-9632264-0-1..
- http://www.ars-grin.gov/cgi-bin/npgs/acc/display.pl?1665161 USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN). [Online Database] National Germplasm Resources Laboratory, Beltsville, Maryland.
- http://trec.ifas.ufl.edu/crane/pdfs/TREC-Fruit-Collections.pdf Page 3, #24
- Crane, J. H.(2003) Mango Growing in the Florida Home Landscape(HS2). Gainesville: University of Florida Institute of Food and Agricultural Sciences Retrieved May 28, 2009, from http://edis.ifas.ufl.edu/pdffiles/MG/MG21600.pdf
- Susser, Allen (2001). The Great Mango Book. Ten Speed Press. p. 14. ISBN 978-1-58008-204-4.
- http://edis.ifas.ufl.edu/mg216 Table 1
- http://video.google.com/videoplay?docid=2075331381108882722 Video description of 'Edward' by Dr. Jonathan Crane of the University of Florida