The (translated) inscription on this stone: Here rest our dear parents Gijsbertha Westmeijer-Prijkel, born 24 February 1900, died 4 February 1945, and Petrus Westmeijer, born 18 January 1897, died 1 March 1948. On the pedestal is inscribed Rust in vrede (Rest in peace).
After a quick search in genealogical databases I found:
Pieter Westmeyer (a.k.a. Westmijer), son of Pieter Westmijer and Elisabeth Maria Zweekhorst, and Gijsbertje Prijkel, daughter of Gerrit Prijkel and Bettje Calis, married on 19 February 1919 in Laren. Gijsbertje died on 4 February 1945 in Breukelen-Nijenrode, Pieter on 31 March 1948 in Utrecht.
On 26 June 1945, their daughter Antonia Elisabeth Gerarda Westmijer died at the age of five months, so I guess Gijsbertje may have died during child birth.
Note the different spellings of this surname: Westmeijer, Westmeyer, Westmijer. And while all records use the first name Gijsbertje, the inscription on the stone has the name Gijsbertha.