When three generations share the same name, how do you know which Miles you're looking at? I had three unlabeled formal portraits from the early 1900s and two men named "Miles M. O'Brien" living in Brooklyn during the same era—a grandfather and his son. The only clue was a severely degraded photo with faint handwriting: "Dad's Father - Died 1930."

This is the story of how I identified Miles Murtha Lawrence O'Brien through fashion dating, WWI draft card records, and the convergence of nine independent lines of evidence. It's also the story of a Brooklyn Irish-American family that rose from immigrant roots to prominence—one man a US Congressman, another a skilled scale maker working for his half-brother's business.

When photographs outlive memory, detective work brings our ancestors back. Join me as I solve a 95-year-old mystery, one clue at a time.

Part of the Storyline Genealogy Series-Uncovering Your Family Story and Preserving Your Legacy