R. P. King was an early officer of Mount Moriah Cemetery. A fine bio of him appears in the pictures with this memorial, as well an an extensive obituary if you "click to view all images". He was a printer by trade, and very active in Philadelphia affairs. It is of note that most accounts of him say he was not interested in elected office and he achieved much good by finding where need lay.

He was a member of Saint Paul's Episcopal Church in Philadelphia, 3rd Street below Walnut. His home was at 522 Spruce Street.

From Mormon records:
Name: Robert P. King
Death Date: 27 Sep 1868
Death Place: Philadelphia, Philadelphia, Pennsylvania
Gender: Male
Race: w
Death Age: 54 years
Estimated Birth Year: 1814 (differing from his bio)
Birth Date:
Birthplace: Philadelphia, Pa.
Marital Status: Married
Spouse's Name:
Father's Name:
Father's Birthplace:
Mother's Name:
Mother's Birthplace:
Occupation:
Street Address:
Place of Residence:
Cemetery: Mount Moriah
Burial Place: Philadelphia, Pa.
Burial Date: 01 Oct 1868

In January of 2021, I received a suggestion that the middle name on this memorial be changed to "Pennick". The suggestion was based on this link. Because sometimes links get removed, I'll spell it out here as https://books.google.com/books?id=LafVAAAAMAAJ&lpg=PA274&ots=s413ccXrkp&dq=robert%20pennick%20baird&pg=PA274#v=onepage&q=robert%20pennick%20baird&f=false This was my reply:

Thanks for your suggestion on Robert P King's memorial. I understand why you suggested "Pennick", because when doing his memorial, I saw the same reference you provided. Ultimately, I chose to go with Pennock for a few reasons-

- The early proprietors of the cemetery where Robert was an officer were linked to Pennocks. It seems the founder George Connell was a state senator whose wife was a daughter of Horatio Pennock.

- https://books.google.com/books?id=mMoOAQAAMAAJ&pg=PA64&lpg=PA64&dq=%22robert+pennock+king%22&source=bl&ots=QgHy2s3P0e&sig=ACfU3U0zMdpEC6xbCbS5zRxLeYRJavC9Kg&hl=en&sa=X&ved=2ahUKEwjUy6eq_ZbuAhXiqFkKHW5rBicQ6AEwC3oECBAQAg#v=onepage&q&f=falsehttps://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwjUy6eq_ZbuAhXiqFkKHW5rBicQFjANegQIDhAC&url=https%3A%2F%2Fwww.forgottenbooks.com%2Fes%2Fdownload%2FTheColonialSocietyofPennsylvania_10312355.pdf&usg=AOvVaw1fm2xg4orteKbgNWrzk2j0 (see page 111)

- https://books.google.com/books?id=mMoOAQAAMAAJ&pg=PA64&lpg=PA64&dq=%22robert+pennock+king%22&source=bl&ots=QgHy2t3N-h&sig=ACfU3U2LA_3Bv7xt51u9oUM4d5ItFNN8nQ&hl=en&sa=X&ved=2ahUKEwjanrnooZfuAhXlYd8KHXI_DAkQ6AEwC3oECA8QAg#v=onepage&q&f=false

- He is on about 69 family trees at Ancestry, and while about half of them spell out his middle name in full as Pennock, just two use Pennick.

I'll be glad to note in the text of his memorial that there is a source using "Pennick" , but it does seem to be an aberration.