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When they were young: 40 Under 40 childhood photos

Jason Robin in 1986, left and in 2015.Jason Robin in 1986, left and in 2015.
Jason Robin in 1986, left and in 2015.Courtesy of Jason Robin/ Photo by Wesley Mann for Fortune

The members of our new 40 Under 40 list are young—they range in age from 25 up to 39. We asked them all to send us a photograph from when they were really young—and most obliged. Take a walk down memory lane and check them out when they were kids.

Adam Neumann, WeWork

Adam Neumann Baby pic
See the profile for Adam Neumann, No. 1 on the 40 Under 40.

JB Straubel, Tesla

IMG_1681[1]Courtesy of JB Straubel
See the profile for J.B. Straubel, No. 2 on the 40 Under 40.

Ryan Graves, Uber

RyanGravesKidFishCourtesy of Ryan Graves
See the profile for Ryan Graves, No. 3 on the 40 Under 40.

Logan Green, Lyft

Logan - big wheel driverCourtesy of Logan Green
See the profile for Logan Green, No. 3 on the 40 Under 40.

John Zimmer, Lyft

John - The first Apple arrives! Jan1988Courtesy of John Zimmer
See the profile for John Zimmer, No. 3 on the 40 Under 40.

Dhivya Suryadevara, GM Asset Management, GM

DSuryadevara childhoodCourtesy of Dhivya Suryadevara
See the profile for Dhivya Suryadevara, No. 4 on the 40 Under 40.

James Park, Fitbit

FullSizeRender[2]Courtesy of James Park
See the profile for James Park, No. 5 on the 40 Under 40.

Taylor Swift

IMG_4068.JPGCourtesy of TAS Rights Management
See the profile for Taylor Swift, No. 6 on the 40 Under 40.

Vas Narasimhan, Novartis Pharmaceuticals

VN Childhood Photo 1Courtesy of Vas Narasimhan
See the profile forVas Narasimhan, No. 7 on the 40 Under 40.

Jason Robins, DraftKings

Jason-Holding-Bat-1987.JPGCourtesy of Jason Robins
See the profile for Jason Robins, No. 8 on the 40 Under 40.

Jason Buechel, Whole Foods

Forbes Photo 1Courtesy of Jason Buechel
See the profile for Jason Buechel, No. 11 on the 40 Under 40.

Robby Mook, Hillary for America

RobbyPhotoEditedCourtesy of Robby Mook
See the profile for Robby Mook, No. 12 on the 40 Under 40.

Noah Wintroub, J.P. Morgan Chase

Noah Wintroub 1977Courtesy of Noah Wintroub
See the profile for Noah Wintroub, No. 13 on the 40 Under 40.

Hugo Barra, Xiaomi

Hugo_Barra_baby.JPGCourtesy of Hugo Barra
See the profile for Hugo Barra, No. 14 on the 40 Under 40.

Jessica Alba, The Honest Company

jessica-alba--aCourtesy of Jessica Alba/Instagram
See the profile for Jessica Alba, No. 15 on the 40 Under 40.

Karen Fang, Bank of America

FullSizeRenderCourtesy of Karen Fang
See the profile for Karen Fang, No. 17 on the 40 Under 40.

Anand Swaminathan, Accenture Digital

Ahmed Swaminathan baby Courtesy of Anand Swaminathan
See the profile forAnand Swaminathan, No. 18 on the 40 Under 40.

Lisa Falzone, Revel Systems

Lisa-Falzone-Child-Pic-1.JPGCourtesy of Lisa Falzone
See the profile for Lisa Falzone, No. 19 on the 40 Under 40.

Parker Conrad, Zenefits

image2Courtesy of Parker Conrad
See the profile for Parker Conrad, No. 20 on the 40 Under 40.

Will Ackerly, Virtru

WRA Dismantling his cribCourtesy of WIll Ackerly
See the profile for Will Ackerly, No. 21 on the 40 Under 40.

Orion Hindawi, Tanium

Orion HindawiCourtesy of Orion Hindawi
See the profile for Orion Hindawi, No. 21 on the 40 Under 40.

Jared Kushner, Kushner Companies

kushner.baby1Courtesy of Jared Kushner
See the profile for Jared Kushner, No. 25 on the 40 Under 40.

Melanie Whelan, SoulCycle

img066Courtesy of Melanie Whelan
See the profile for Melanie Whelan, No. 26 on the 40 Under 40.

Kayvon Beykpour, Periscope

image1Courtesy of Kayvon Beykpour
See the profile for Kayvon Beykpour, No. 27 on the 40 Under 40.

Michelle Dipp, OvaScience

Michelle DippCourtesy of Michelle Dipp
See the profile for Michelle Dipp, No. 28 on the 40 Under 40.

Stacy Brown-Philpot, TaskRabbit

IMG_3318Courtesy of Stacy Brown-Philpot
See the profile for Stacy Brown-Philpot, No. 29 on the 40 Under 40.

Sam Altman, Y Combinator

Sam.AltmanCourtesy of Sam Altman
See the profile for Sam Altman, No. 30 on the 40 Under 40.

Chris Wanstrath, GitHub

Chris Wanstrath_Childhood photoCourtesy of Chris Wanstrath
See the profile for Chris Wanstrath, No. 31 on the 40 Under 40.

Debbie Sterling, GoldieBlox

Baby Debbie SterlingCourtesy of Debbie Sterling
See the profile for Debbie Sterling, No. 32 on the 40 Under 40.

Brian Sheth, Vista Equity Partners

Brian Sheth Baby PhotoCourtesy of Brian Sheth
See the profile for Brian Sheth, No. 33 on the 40 Under 40.

Michael Dubin, Dollar Shave Club

40u40-dubin-michael-01Courtesy of Michael Dubin
See the profile for Michael Dubin, No. 34 on the 40 Under 40.

Andy Katz-Mayfield, Harry’s

40u40-katzmayfield-andy-01Courtesy of Andy Katz-Mayfield
See the profile for Andy Katz-Mayfield, No. 34 on the 40 Under 40.

Jeff Raider, Harry’s

40u40-raider-jeff-01Courtesy of Jeff Raider
See the profile for Jeff Raider, No. 34 on the 40 Under 40.

Josh Goldin, Alliance Consumer Growth

Josh Goldin PicCourtesy of Josh Goldin
See the profile for Josh Goldin, No. 35 on the 40 Under 40.

Julian Steinberg, Alliance Consumer Growth

Julian-Steinberg-PicCourtesy of Julian Steinberg
See the profile for Julian Steinberg, No. 35 on the 40 Under 40.

Trevor Nelson, Alliance Consumer Growth

Trevor Nelson picCourtesy of Trevor Nelson
See the profile for Trevor Nelson, No. 35 on the 40 Under 40.

Julia Hartz, EventBrite

2015_09_09_11_59_03-1Courtesy of Julia Hartz
See the profile for Julia Hartz, No. 36 on the 40 Under 40.

Ashifi Gogo, Sproxil

Young-AshifiCourtesy of Ashifi Gogo
See the profile for Ashifi Gogo, No. 38 on the 40 Under 40.

Reshma Saujani, Women Who Code

resh_babypic1Courtesy of Reshma Saujani
See the profile for Reshma Saujani, No. 39 on the 40 Under 40.

Ronda Rousey, UFC

Ronda Baby PicCourtesy of AnnMaria DeMars
See the profile for Ronda Rousey, No. 40 on the 40 Under 40.

To see the full list of the Fortune 40 Under 40, visit fortune.com/40-under-40.

For more Fortune photography follow us on Instagram at @fortunemag.