GRHS Board Member, Charles Sanchez will read the Declaration of Independence on July 4, 2019 at 2 PM and 3 PM. Mr. Sanchez will also discuss the origin of the flag and historical events that led up to the Declaration. Included with admission to the Onderdonk House. Visitors can also take guided or audio tour of the Onderdonk House. $5.00 for Adults, Free for Children under 12 with an adult, Free for Service members, Veterans and Members of the GRHS.