The search for Ira Payne Bishop of Chester took his relatives and police to Philadelphia's Fairmount Park Sunday night.
The family says he was last seen in the area.
Ira was not found but his uncle says they will not give up.
"We just want to bring him home," said Martin Payne.
Police searched the area near Randolph Drive.
They found clothes but nothing that could immediately be linked to the missing man.
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