The draw was conducted by event organiser Caradoc Bevan and Adex operations director Kevin Marum.
The winners of the Hemel Town and Tring Park clash will travel to Leverstock Green A in the second round, while another eye-catching clash sees local rivals Abbots Langley and Kings Langley battle it out in the opening round of the competition.
Full first round draw: Kings Langley v Abbots Langley; Langleybury v Met Police Bushey; Leverstock Green B v Watford Town; Chipperfield/Clarendon v Northchurch; Ivinghoe & Pitstone v Berkhamsted; Little Gaddesden/Potten End v Boxmoor; Leverstock Green A – bye; Hemel Hempstead Town v Tring Park.