It is very likely these are duplicates. There is a marriage of parents
Metjen Beukers en Hendrik Heijmans, proclaimed November 12, 1762 marriage November 28:
"Netherlands, Gelderland Province, Church Records, 1405-1966," images, FamilySearch (https://familysearch.org/pal:/MM9.3.1/TH-1971-32991-14432-46?cc=2038506 : 22 August 2014), Nederlands Hervormde > Doesburg > Trouwen 1751-1816 Overlijden, Begraven 1800-1811 > image 109 of 500; Gelders Archives, Arnhem.
He was "Tamboer in het eerste bataljon Orange Gelderland" ("Drummer in the first battalion Orange Gelderland"), she "having lived lately in Amsterdam".
There are two more baptisms of this couple to be found in Breda, 1770 and 1773.