At https://billiongraves.com/grave/Harold-Dean-Pitman/21431278 there are 5 family members listed. One (Marlene) is missing. I have tried adding this on several browsers (Safari, Firefox, Chrome) on my Mac but fails. I get the pop up window, can add the details but fails to save them.
This may have been a glitch, as the epitaph lists the name of Marlene and the relationships on the headstone also lists Marlene.
This is truly a lovely memorial! The family photos are quite stunning and have captured your family in a very beautiful way! Adding the link in with FamilySearch has made this so much more than just a monument, it has created a memorial to a loving close knit family. Thank you for sharing this!