I did a minor edit on the profile to get the 'references' tag under the Sources header since it was in the middle to what you had posted.
I wonder if the person married to Richard Holbrook is someone else. The gravestone states that Sarah is the widow of John Lum and matches the dates on the profile.
The information that was added in 2016 has the christening date and marriage to Samuel Woodruff. There is an Ann Nettleton-219 profile, which has the same information, so I agree that the Ann Nettleton information should be removed form Sarah Nettleton-213 profile since it is already on Ann's profile and then just unlink Samuel Woodruff from this profile.
There is also a John Lum-119 profile, that is linked as a sibling, but is suspicious because it is in the middle of the Nettleton siblings.