Heuer said the annual celebration, which features about 150 craft exhibitors and nearly a dozen food and beverage vendors, has grown to become the society's only fundraiser each year.
"It's pleasant here in the park," Heuer said of the event, which features a juried show of art and craft work for sale, with some exhibitors traveling from New Jersey, Delaware, Florida and Pennsylvania. "And we've always had good weather."
Members of the Tri-State Astronomers returned to Boonsboro this year after being surprised by the public's interest to get an up-close view of the sun, said Dan Kaminsky, chairman of the Tri-State Astronomers board.
Saturday about noon, viewers clearly could observe a solar eruption. A small sliver of the moon was all that remained as it waned toward the new moon phase.
"I particularly like doing these outreach events." Kaminsky said. "It makes (people) more aware of their surroundings."
Kaminsky said his fascination with astronomy began when he received a telescope for a birthday present. He joined Tri-State Astronomers about four years ago.
Joe Lubozynski of Frederick, Md., helped demonstrate how labor intensive the production of linen clothing was in the colonial era.
The time from planting the flax seed to sewing a linen shirt back then would take about a year, Lubozynski said.
Though he was able to exhibit how the seemingly fragile flax plants are combed of short and course fibers through nail-like brushes for spinning, Lubozynski said sewing is not something that comes easily for him.
"It takes a lot time, and sewing skills are not my forte," he said.
If you go
What: Boonesborough Days
When: Today, 9 a.m. to 5 p.m.
Where: Shafer Memorial Park, Boonsboro