Could it possibly be:
https://en.wikipedia.org/wiki/Joy_to_the_World
Created by the power of Watts
The lyrics for Joy to the World were written by Isaac Watts
And named for an argument happily settled,
Said argument has to do with the coming of Jesus Christ as King, and of his resulting triumph over sin in this world.
Although it was not the only resulting settlement.
The current version of the music was written by Lowell Mason, who claimed he had adapted it from Handel, although Handel scholars claim that the similarities are chance.
Joseph was able to make his coat first
This hymn was adapted by W.W. Phelps for A Collection of Sacred Hymns, which is the hymnal for the Latter Day Saints. The Latter Day Saints, of course, were founded by Joseph Smith.
In a pile of grateful vegetables.
The song has been performed in the children's show Veggie Tales.
Since the first one didn't do it, let's look at this:
https://en.wikipedia.org/wiki/Fort_Kearny
Created by the power of Watts
Named for Colonel (later General) Steven Watts Kearny
And named for an argument happily settled,
The second Fort Kearny was originally named Fort Childs, but the War Department ordered that it be renamed Fort Kearny.
Although it was not the only resulting settlement.
Oooh, "settlement." I just got that. Dobytown and a number of "road ranches" were built up nearby.
Joseph was able to make his coat first
Once again, we see the Latter Day Saints, this time because Fort Kearny was on the Mormon trail and Lt. Daniel P. Woodbury advocated the use of Mormon emigrants for construction.
In a pile of grateful vegetables.
The fort kept a large number of supplies on hand for travelers, and the commander was instructed to sell these goods at cost, or even provide them for free, for which the travelers would obviously be grateful.
And, of course, the hints...
I remember playing The Oregon Trail on an Apple IIe back in junior high school, about (coughhackcrunch) years ago.