To go "overboard," means, of course, to fall out of a boat.
Now the wagon, in which Bunny Brown and the others rode to the picnic, was not a boat But you see Bunker Blue was so used to being in and about boats that he always talked of them, speaking as sailors do. If anything is lost out of a boat, it goes "overboard," and that was what Bunker was not going to let happen to the lunch baskets on the picnic trip.
"For if the lunch goes overboard we'd go hungry," he said, "So I'll hold the baskets."
"These horses can't go as fast as my nice team, that the Gypsies took," said Grandpa Brown, when they were all ready to start.
"Well, we're in no hurry." said Grandma Brown. "The picnic will last all day."
As grandpa drove out on the road Bunny and Sue saw many wagons, from other farms, coming along. It seemed that all who could were coming to the Sunday-school picnic, which was held every year. In many of the farm-wagons were boys and girls. Bunny and Sue looked at them, wondering if any of the little folks would play with them.
