Years ago, I saw this Western movie on tv but I have never been able to find out the name of this movie.

This is what I remember about it:
This husband and wife have several daughters. They all take a liking to this cowboy. (I think he comes and stays with them for awhile...helping out on the farm or something?) Anyway, one of the girls is named/called Junior. Junior is a tomboy. She really, really likes the cowboy.
One day, the family gets some neighbors. The neighbor has a several sons. All the daughters forget about the cowboy and start talking to the boys.
Except the tomboy girl Junior. She truly loves the cowboy. For some reason, the cowboy has to leave but... he tells Junior he will come back for her one day. Then the cowboy rides away on his horse.

Any information you can give me about this movie would be much appreciated.