R, my point is that the surname Moody is based on a presumption that the man John's mother married after John's birth was his bio-father - at least as accurately as we could expect that "fact" to be determined in that time period.
Suffice to say that several currently unknown events could have occurred in his mother's life between John's conception and his birth!
We have no evidence to support or disprove either possibility (bio-father; not bio-father); therefore, we should follow the source documentation, which gives John's LNAB as Henderson.
We also have no evidence that John was adopted after his mother's marriage, so that is a moot point without documentation.
Death records for an 85-year-old person are not good source documents to use to establish LNAB.
Of course, as the profile manager, you have the flexibility to keep Moody as John's LNAB or to change it to reflect the birth documentation. Our WikiTree won't collapse, whatever you decide; so take your time to ponder all the input from your fellow WikiTreers!!