On Saturday they concentrated in the area where the baby's father lives, on Mountain Boulevard and Keller Avenue.
The girl's grandfather, Kevin Davis, says every day since she went missing has been hard.
"Oh, man, it's unreal because there's no way to prepare for something like this," he said. "And I'm sure a lot of people can say that about their specific situation, tragedies they go through, but for us there's really no way to even prepare."
Daphne disappeared from the back of her dad's car.
Davis said the family has no information on Daphne's whereabouts.