Fresno/Clovis Dressage Peeps from 1980s

So I have this really nice pencil sketch of an FEI horse trotting on a circle. It captures suppleness and harmony in the horse and rider. I purchased it in the early 80s at a show in Clovis, likely Clovis Training Center from the artist who had a booth. I think I pain $15 or $20. Today a very quick web search and found Kathleen Baalindt in California who may have lived in Fresno at one time. Are there other sketches out there?