Hard to tell, but these are a few of the most popular dooryard varieties. Looks like either a Keitt or a Kent to me. Both are delicious.

https://www.mango.org/mango-varieties-availability/

If it was grown from seed, how could it be an actual named variety? I thought they do not grow true to seed...?

IMO, it's likely one of a kind and nameless.

Yes I believe only polyembryonic mango seeds produce fruit true to its parent. Here's an article below that helps explain it the difference between monoembryonic and polyembryonic seeds.

https://homeguides.sfgate.com/growth-mango-seeds-41463.html

I have a Keitt mango tree and the fruits are a late variety usually August thru as late as Oct. here in central Fl. The fruits are quite large (up to 3 lbs) sometimes, also and they aren't round. the kents are smaller but they also are not round.

There is a pretty good website that shows some of the common varieties grown in FL but there are SO many new ones come out all the time. But if it was grown from seed that is

http://www.tropicalfruitnursery.com/variety-viewer-variety-mango-reference-4

If that was grown from seed there is a very good chance you may never know the variety? Is it stringy or has very little to now fibers? Usually if you have to floss after eating a mango it's probably seed grown, though Tommy Atkins is one that comes to mind that's known to be somewhat stringy. It is one of the most produced variety for shipping for super markets due to its very colorful skin when ripe and also ships very well...but taste is not the best for growing in your backyard.

If you have a lot of patience, another good resource for mango characteristics is Truly Tropical's channel on youtube:

https://www.youtube.com/channel/UCObjyZOcrbSLRrO2sEsoKOA/videos

She has very complete videos on many different mango varieties, including details on the tree characteristics as well as the fruit itself.

ETA Just to clarify, I'm referring to the series where each video is a particular variety, not the tasting ones.

Baileys Marvel?

I was searching for Baileys Marvel and found some similarities in the size of the fruit, the only difference is the color is a bit red on Baileys varieties even though the Plant at my family’s home might not Have been feed the right amount of nitrogen to give it a nice red look.

Writersblock Thank you for the channel suggestion! I’ve actually seen some of her videos and really enjoyed the information she provides.

carolb-w_fl_coastal_9b

Thank you I wasn’t aware that Mango’s didn’t grow true to seed.

That would be pretty interesting if it turned out to be one of a kind! Going to start thinking of some names for it lol.

That's right,he grew it from seed. Well, BM are descended from Haden..so it could be a Haden that was so sweet your grandfather planted a seed from one.

Unless your granddad would buy rare varietys..going for commonly available market Mangoes might be the one.

dirtygardener -- Z9a, N. Central Florida

Thank You for the link, I will look and see if anything resembles the pictures I have in my photo library.

EVen with known varieties it's not always easy to make a positive ID. When I was a kid our neighbors bought three mango trees that had the best mangos I have ever, ever tasted, but nobody knew what they were because our neighbor thought the variety tags were the landscapers signing their work and removed them.

They even took fruit, leaves, and pictures down to Fairchild and they couldn't identify them, either. To this day no-one knows what they are.