Three of the 19 Hotshot fire crew members killed in an Arizona wildfire had firefighting in their genes, following their fathers' footsteps.

A make shift memorial and a sign reading "Heroes" is displayed outside of Station 7 in Prescott, Arizona (Christian Petersen/Getty Images)

Several were family men and all are remembered fondly by friends and relatives.

Chris MacKenzie, Wade Parker and Kevin Woyjeck all had fathers who were firefighters.

Former firefighter Dav Fulford-Brown tells The Riverside Press-Enterprise that MacKenzie "lived life to the fullest" and was working on a promotion.

Prescott, Ariz., resident Elise Smith says 29-year-old Andrew Ashcraft "just had a really sweet spirit about him." He leaves behind a wife and four children.

Robert Caldwell's aunt calls him was "a gentle giant." He was married with a 5-year-old stepson.

The depictions were typical of people's recollections about all the victims.

The men were killed Sunday when a windblown wildfire overcame them north of Phoenix. Fourteen of the victims were in their 20s.

Dark Day For Arizona

The exterior sign of Station 7 is seen through American flags hung on a fence (Christian Petersen/Getty Images)

President Barack Obama is promising Arizona's governor the necessary federal support to battle the fast-moving wildfire that killed 19 firefighters.

The blaze has spread to 13 square miles, destroying 50 homes and threatening 200 more in the town of Yarnell.

At a Monday memorial for the firefighters, Arizona Gov. Jan Brewer called it "as dark a day as I can remember."