Whitaker's Mill Historic District
Whitaker's Mill Historic District is a national historic district near Joppa , Harford County , Maryland , United States . 
<triplet> Whitaker's Mill Historic District <subj> United States <obj> country <triplet> historic district <subj> United States <obj> country <triplet> Joppa <subj> Maryland <obj> located in the administrative territorial entity <triplet> Harford County <subj> Maryland <obj> located in the administrative territorial entity <subj> United States <obj> country <triplet> Maryland <subj> Harford County <obj> contains administrative territorial entity <subj> United States <obj> country <triplet> United States <subj> Maryland <obj> contains administrative territorial entity