From photographer Vincent J. Musi

She lived the life photographic in the best sense. Her photographs were very much like her; purposeful, revelatory and elegant.

Like many who spend their lives documenting conflict, Alexandra really celebrated the time when there was peace.

Last year on a trip to Paris, with my wife Callie Shell and our four-year-old son Hunter, we had the honor of attending a small gathering to celebrate her mother Annie's, birthday.

Alexandra had just completed an incredible renovation of her beautiful apartment and she was proud to display it.

She had trained as a painter and when I remarked about what I assumed to be a beautifully polished sculpture on her kitchen counter, she informed me that it was shrapnel she recovered from Afghanistan. That "sculpture" was part of a cruise missile.

Her father's influence as a photographer cannot be understated. It's what kept her photography alive. She grew everyday as a photographer in what she photographed and how she photographed. She greatly admired her mom and her ability to lead when others followed.

Finally, on this night, with her partner Issa Freij serenading on the guitar, she appeared from the darkness bearing her mother's birthday cake, complete with toy soldiers guarding the candles.

Bon nuit, Alexandra

From photographer Jodi Cobb

She was the bravest of the brave, with a huge heart and sense of justice. She was an inspiration to me, although I knew I could never ever possibly follow in her footsteps. I will miss her enormously.

From writer Tracy Dahlby

Working with Alexandra on a story about Indonesia ("Indonesia, Living Dangerously in," National Geographic, March, 2001) brought both inspiration and insight. Somehow, in a way that a visually challenged writer only dimly grasps, Alexandra managed to bring a marvelously subtle, dark edge to her photos that to me perfectly captured the mood of the country at a delicate moment of transition. I'm still in awe of the fact that she actually spent five days camped out in a tribal longhouse, waiting for the moment to snap the story's opening photo of a Mentawai shaman casting a spell—for my money one of the most riveting photos ever to appear in National Geographic magazine. Alexandra's patience, dedication to craft, her artistry and generosity of spirit, made her a joy to work with and a delight to know.

From National Geographic photo editor Elizabeth Krist

The last time I was in Paris, Alexandra invited me to her home. We hardly knew each other, and it was so generous of her to take in a wanderer and share an evening talking about photography, and friends, and life in Paris.