NATIONAL PARK — In 1777, Jonas Cattell ran approximately 10 miles from Haddonfield to warn the American troops that the Hessians were on their way to attack Fort Mercer.

On Sunday, Oct. 19, modern-day runners will mark that event with a 10-mile run of their own, from Haddonfield to Red Bank Battlefield, and will kickoff an 18th Century Field Day there.

From 10 a.m. to 4 p.m., there will be battle re-enactments, children’s activities, tours of the historic Whitall House, gunsmithing demonstrations and more free and educational activities.

Here’s a schedule of the day’s events:

10 a.m.: Jonas Cattell race awards; children’s Muster Drill; calligraphy (until 12:30 p.m.), and the opening of Whitall House (which will close during the battles.)

11 a.m.: First battle re-enactment

11:30 a.m.: The Colonial Conjurer at the Kids’ Stage.

12 noon: Loyalist vs. Patriot sword fight at the Kids’ Stage; weaving demonstration until 3 p.m.

12:30 p.m.: Children’s Muster Drill

1 p.m. : Girl Wonder at the Kids’ Stage

1:30 p.m.: Loyalist vs. Patriot sword fight at the Kids’ Stage

2 p.m.: Second battle re-enactment

2:30 p.m.: Girl Wonder at the Kids’ Stage; last tour of the Whitall House

3 p.m.: A Soldier’s Life

Also ongoing during the day will be gunsmithing, 4-H Animals, lacemaking and face painting.

Admission and parking are free.