Hodgkiss,
Hello. I do not know if they were buried together or separately. I don't know if it was customary in English churchyards to select the burial site based on what land was available at the time of burial or if families were buried together.
I do know when they were born.
Richard JONES was born in 1799 (Cleobury North, Shropshire) and Rosanna JONES (formerly BIRCH) was born in 1798 (Newport, Shropshire). They lived in Oaken. Richard and Rosanna also buried a young daughter Lucy JONES there on 24 November 1833 (she was born in 1826).
Anne JONES (formerly ROBERTS) was born in 1828 (in Ruyton-XI-Towns, Shropshire) and she and her husband Thomas JONES lived in Codsall.
Rosanna, Lucy and Anne JONES all appear in the Codsall parish records as having been buried there. I am assuming that Richard is there, but I have not seen the burial registers in 1880 when he died.
I would be quite pleased and amazed if you can find any of them as I would not have known how long any marker would have survived. If you find them and can take digital photographs, that would be wonderful.
Thanks,
Jonathan