Your starting point is in old Marlboro village center at WP 1, where you will find your first missing numbers. From there, it is approximately a 4.5 mile drive along a nice country road to the final. You will need to find some more numbers along this route to obtain the coordinates for the final location. The missing numbers will be found at the waypoints listed below. This mystery tour has a Halloween theme, so the cache is stocked with Halloween toys. Enjoy the Mystery Tour, and Happy Halloween!
NOTE October 31, 2022 - I removed the checker. It won't accept the final coords because its more than 2 miles from start, and would only display the posted coords. Feel free to message me with any issues.
FINAL CACHE LOCATION: N 42 A B. C D E W 072 F G. H I J
WP1: N42 51.584 W072 43.558 The Post Office street number - 483 = IJ
WP2: N42 51.347 W072 41.201 Lurena Bryant's year of death - 1442 = FGH
WP3: N42 51.259 W072 41.090 The last two digits in the date the monument was erected - 4 = DE
WP4: N42 51.167 W072 40.842 Subtract 1386 from the date on this structure = ABC Hint is for the final.