I am related to William Richard Tustian married to Emma VanHorne. I am happy to share all I have on the Tustians who left England and came to Ontario and Alberta, Canada.
My Great Grandfather George Tustian md to Ann Maria Rivett came to Ontario and settled on the Manitoulin Island. His son Robert was my grandfather and Robert's son Orval is my father. So my Grandfather was a brother to your William Richard.

I would be happy to share all I have with you.