Hi Jen
The Coleman Lyon Phillips line are all Jews whereas John Phillips SA settler appears not to be unless he converted to a Christian. We just do not know if the John Phillips as per the 1819 letter of application and the John who settled in SA are one in the same.
See Synagogue Scribes GSB P 002 Coleman Phillips b Rosemary Lane 1794 father Lyon Hebrew name Yehuda b Kalonymus Coleman mother Judith Hebrew name Yetta bat Jesse.
You said in your original posts that your John was the son of John Phillips and a Goldschmidt. What we cannot confirm is any link to the above Phillips nor to Goldschmit,Goldsmid,Goldsmith, Rothschilds or any Jewish lines.
What are your thoughts?