I have some information on a John Walklet Brown being in Toquerville, Utah. William hammond rented a lot and farm from John Walklet Brown who moved to Parowan in 1868. John was a lawyer but people had very little money to pay and farming had proven a hard way to make a living.
One of John’s stepsons George A. Lowe’s “favorite stories was telling of the starvation days in Toquerville during the years 1864 to 1868, when they lived on chubs from the Virgin River and Lucerne greens for so long that his mother grew tired of cooking them so (she) staked the kids out. If any one questioned this statement, George pulled up his trousers and showed them the scars on his ankles.
“One day an old man, John Dalton, happened to listen in on this story. He looked at the scars—then at George. ‘George,’ he said, ‘you know you are telling a darned lie.’ George confessed that the scars were made when he used to wade out into Little Salt Lake (Parowan) and gather salt to use and to sell.”
Don't know if this is information on your John Walklet Brown. I hope it helps.