1917 - Zinda Blake is born in England.
1918 - 1-year-old Zinda's father returns from the war & becomes an aircraft mechanic.
1923 - 6-year-old Zinda starts helping her dad in his hanger.
1932 - 15-year-old Zinda first learns to fly.
1940 - 23-year-old Zinda hustles her way onto blackhawk island as a mechanic & quickly becomes their main engineer. She becomes Lady Blackhawk.
1947 - 30-year-old Zinda is infected with Hitler's Bio-Plague. She is placed into one of his stasis chambers on Blackhawk Island by Stanislaus Drozdowski.
1958 - Stanislaus Drozdowski makes sure 30-year-old Zinda's stasis chamber is safely maintained by New York University.
5 years ago - 30-year-old Zinda's stasis pod is recovered by Guy Gardner, who enlists Doctor Midnite to save her. She takes a job tending bar at Warriors.
Zinda Blake was kind of a token character during the original run of the Blackhawks, but that's more or less in keeping with the era she was written. It was when she was brought forward into modern time (thanks to the constant time-screwery of the various crisis) that she really got to become the character she's known for... as a vintage hard-drinking, brawling, tough-as-nails pilot and mechanic. It's actually a lot of fun to retroactively imagine that character earning the respect of the other members of the Blackhawks.
Obviously, her current career with the Birds of Prey is fantastic. She was brought into the team by Gail Simone, and was immediately a fan favorite. This was an easy story to include, but what was harder was crafting an actual reason for her to have made that transition. Time travel seems weirdly prevelant during WW2 given all the heroes that wound up displaced and in our own time, so we tried something a little different. We've been laying the seeds for a post-war conflict with some of the remaining Axis forces involving Vandal Savage, the Ultra-Humanite, and Hitler's disembodied brain. As you read some of the timelines to the more obscure characters that operated in that era, like the Creature Commandos, you'll find regular references to it. By having Zinda be a victim of "Hitler's Bio-Plague", we explain the need for her to be sealed in suspended animation, until she can be cured by modern science and allowed to join us today. It's not a NEW story by any means, but a functional one, and it gets us a great character.