Edwin Augustus Porcher was not a prominent figure in the field of fine arts, and as such, there is limited information available regarding his contributions as an artist. It appears that Porcher may be more notably recognized for other roles or achievements, possibly outside of the traditional scope of art history.
During the 19th century, several individuals with similar names might have had various occupations, such as military service or exploration, which could be more prominent in historical records than any artistic endeavors they may have pursued. It's also possible that Edwin Augustus Porcher could have been an amateur artist or someone who was involved in the arts in a lesser-known capacity, which has not been widely documented or recognized in the historical record.
Without more specific information or context, it's challenging to provide a detailed biography of Edwin Augustus Porcher in the capacity of an artist. Additional details such as a specific time period of activity, geographical location, or known works of art would be necessary to accurately research and provide a biography reflecting his contributions to the art world.
In the absence of such information, it is important to note that any biography provided here would be speculative. If Edwin Augustus Porcher was indeed an artist, his work and impact on the art world have not left a significant mark on the historical record, at least not under this name or within the well-documented art historical narrative.