Complex sentence: Wilshire eventually returned to Los Angeles and made much of his connection with the now famous Boulevard that bore his name, though he had no direct involvement with its gradual expansion in the years while he was absent from the region.
Split into simpler sentences: Wilshire eventually returned to Los Angeles and made his connection with the now famous Boulevard that bore his name. He had no direct involvement with its gradual expansion in the years while he was absent from the region.