William Kimmins McMinn is not a widely recognized figure in the field of art history based on the information available up to my last update in 2023. It's possible that William Kimmins McMinn might be a lesser-known artist, a figure associated with a specific regional or local art scene, or perhaps involved in a different capacity within the art world or another field entirely. Without more specific details, it's challenging to provide a detailed biography or to place him within the broader context of art history. The lack of information could also suggest that he might be a contemporary or emerging artist whose career has not yet been fully documented or studied in academic or art historical circles. Alternatively, if William Kimmins McMinn has made contributions outside the traditional scope of visual arts—such as in design, curation, art education, or other creative endeavors—those achievements might not be as readily captured in typical art historical resources. For accurate and comprehensive information about William Kimmins McMinn, one might need to consult contemporary art databases, local art directories, or specific exhibition catalogs that could shed light on his contributions to the art world or the specific nature of his work.