They say your choice of automobile reveals something about you: Jeep owners are adventurous; a minivan shows you're practical. But if you have an old family photo featuring a cal; such as this shot of the Millar family of Minneapolis, you'll extrapolate even more than personality traits. By studying the bumpers, headlamps and chassis, you can learn details such as when and where your ancestors purchased their car and their economic status. And yes, you'll find out a little something about the man behind the wheel (or perhaps a progressive woman; our mothers and grandmothers rarely drove in the early 1900s).

Sentimental journey