For years, Dr. Martina Callum has traveled the country and the world as a locum tenens physician, providing temporary health care in communities where few doctors exist.
But after months on the road, she'd return home to an apartment in White Marsh that could barely hold the furniture, art and other items that she had accumulated over a lifetime.
"I was flying back and forth to places like Alaska and paying a lot of rent here," says Callum, who was raised in East Baltimore. "My mother was upset that I didn't own a house, though I did have one years ago. I needed a home to call my own."
Fortunately, Callum's mother, noted Maryland genealogist Agnes...