| Heemskerk: Laurentiuskerk |
Parish church in Heemskerk, since 1319 served by Commanderij Jan Baptist in Haarlem.
 | NL-Hs 184 C 3, noted breviary, late 15th century |
| | NL-Hs 184 C 6, psalter, ca 1480 |
 | Heemskerk onderweg, pp. 144-145, p. 155-156 (incl a list of altars) |
| | H. van Benthem: De parochie S. Laurentius te Heemskerk, in: Haarlemsche bijdr., vol. 59 (1941), pp. 135-160; pp. 248-323 |