This was added to [[Mauleverer-17|Anne Mauleverer]] but I have been unable to determine what CfdQR refers to.
I found this citation on another website: -CfdQR — Records of the Chesterfield Monthly Meeting of the Society of Friends; Originals in possession of Meeting of the Society of Friends, partial copy in Gen. Soc. of Pennsylvania libarary, Philadelphia.
From the context I think it refers to “Chesterfield Quaker Records.” Cfd being an abbreviation for Chesterfield.
Beat me to it by 2 minutes. This is correct. Referring to the former Chesterfield Monthly Meeting in New Jersey, whose successor is Crosswicks Friends Meeting.
Note, I don't think this was used in Quaker records per se, I think it's used in genealogical sources citing Quaker records.