No — reliable public sources do not currently confirm Bill Ott's left-handedness.

William 'Bill' Ott is recognized for his significant geological discoveries, particularly in the Grand Canyon. He is credited with finding fossilized tracks in the Bright Angel Shale formation, which provided valuable insights into ancient life forms and geological history of the region.

Ott's discovery in the Grand Canyon included fossil evidence of scyphomedusan (jellyfish) and other invertebrate tracks, challenging previous understandings of the paleontology of the Cambrian period in that area. His findings contributed to scientific literature and understanding of early marine ecosystems.

His work has been cited in various geological studies and museum exhibitions related to the Grand Canyon's natural history. He is an example of an individual whose keen observation led to important scientific contributions in the field of paleontology and geology.

Details about Bill Ott's personal life and career beyond his geological work are not extensively publicized. His legacy is primarily associated with his specific contributions to the study of the Grand Canyon's geological and paleontological records.