Playmates and cousins, Tiffani Burnett and Ashley Campbell, said they were ready to return to classes at Fountaindale Elementary school.
Freeman, her husband, William, and two of their children, Brandon and Angela, were expecting 25 more people.
City Park was overrun by both toddling ducks and toddling children.
"They're feeding ducks, buying corn, shooting water guns, enjoying the day... they love this park. We're really trying to wear out the grandkids so we can go home and take a nap," said Carol Mauck, 49, of Martinsburg, W.Va.
Mauck and her husband, Kenny, 55, brought June Mauck, 74, and their grandchildren, Sheena Snyder, 5, and Isaac Snyder, 3 1/2.
"We had lunch at KFC before we got here. That's the kind of picnic to have. I hate to see tomorrow ... hate to go back to work," Carol Mauck said.
"When I was little, I used to come to this park with my parents. So, I brought my husband," said Susan Herzig, of Gaithersburg, Md.
The Herzigs, who are in their 30s, ate submarine sandwiches at a picnic table under the trees near the children's play area.
"It's pretty warm today. We might drive by later and check out the baseball stadium," Bruce Herzig said.
At Hagerstown's Municipal Golf Course, people knew what they were there for.
"It's relaxing being off work," said Joan Mummert of Waynesboro, who waited in the golf cart for Ed Beasley, of Falling Waters, W.Va.
At 2 p.m. on any other Monday, Mummert said, she'd be working as a secretary of Waynesboro Area School District.
Lifeguard Stephanie Morgan at C.M. Potterfield Swimming Pool on Frederick Street took a break from the sun and watching the swimmers.
"It's been dead all week. Today's been crowded compared to that," said Morgan, 19, a Maugansville resident. About 50 people showed up in a little over an hour, she said.
"It's families and kids. They're happy to be swimming and enjoying the cold water," she said over music blaring from speakers near the pool.
Morgan, a Hagerstown Junior College student majoring in health and physical education, worked the noon to 7 p.m. shift with lifeguard Meggan Mooney, 16, and head lifeguard Robert Roane, 20.
"I don't mind it because I like my job. This is my fourth summer here. But I am missing the family picnic," Morgan added.
Labor Day is celebrated the first Monday in September to honor working people, and it has also become a symbol of the end of summer. President Grover Cleveland signed a bill in 1894 making Labor Day a national holiday.