That's a good question, Dennis. I know there were at least 2 other tracks very close to Lakeview on the other side of the river. One was Salisbury Fairgrounds. I found another large track once that was near Salisbury and I think someone here identified it but I can't remember where or what the name was. I will look through more aerials to see if I can find those again and post them.
As far as how long Lakeview was active, I just don't know. I was under the impression it was over by the early '50s.
Here are some later aerials of the track. The first one is from May 9, 1951 and it's hard to say but it looks like it is in disrepair. It looks like the beginning of the back stretch is washed out.
The second aerial is from April 11, 1960 and shows trees growing in the track that look quite a few years old. It's up for speculation as to when the track was last used until someone finds some documentation like dated newspaper articles. I would love to know.