Eva was born to William Elias Baldwin and Eva Katherine Bigsby in a now non-existant town called Salem near Mankato, Jewell County, Kansas. Her brothers and sisters were Clara Etta (St. John), John Bert, Edna, Maude May, Emma, Guyneth, Edward, Harry Albert, Glen, Ida Lenora (Frydendall), Laura Katherine, and Fred. Her step-brothers and step-sister from her father's first marriage to Bridget Biddy Sullivan were Charles William, Stella Ann (Beam), and Frank.

Eva was raised in Salem and married Lester Lee Mullen on Aug 5, 1915 in Smith Center, Smith County, Kansas. They had two children, Kenneth Lyle Mullen born in Jewell County, Kansas and Maxine Louise Mullen born in Clay County, South Dakota. Lester and Eva moved to Idaho in November 1936. They first rented a farm in the Grant area north of Idaho Falls, Bonneville County and then purchased an 160 acre farm in the Goshen, Bingham County, Idaho area with Kenneth, his wife, Marjorie (Pickett) and their three sons until the late 1970s after Lester's death in 1973. Eva moved to Soda Springs, Caribou County, Idaho in 1980 to be live near Maxine and her husband Alma Robinson. She died from liver cancer in Idaho Falls, Bonneville County, Idaho on August 29, 1984.

Eva was born to William Elias Baldwin and Eva Katherine Bigsby in a now non-existant town called Salem near Mankato, Jewell County, Kansas. Her brothers and sisters were Clara Etta (St. John), John Bert, Edna, Maude May, Emma, Guyneth, Edward, Harry Albert, Glen, Ida Lenora (Frydendall), Laura Katherine, and Fred. Her step-brothers and step-sister from her father's first marriage to Bridget Biddy Sullivan were Charles William, Stella Ann (Beam), and Frank.

Eva was raised in Salem and married Lester Lee Mullen on Aug 5, 1915 in Smith Center, Smith County, Kansas. They had two children, Kenneth Lyle Mullen born in Jewell County, Kansas and Maxine Louise Mullen born in Clay County, South Dakota. Lester and Eva moved to Idaho in November 1936. They first rented a farm in the Grant area north of Idaho Falls, Bonneville County and then purchased an 160 acre farm in the Goshen, Bingham County, Idaho area with Kenneth, his wife, Marjorie (Pickett) and their three sons until the late 1970s after Lester's death in 1973. Eva moved to Soda Springs, Caribou County, Idaho in 1980 to be live near Maxine and her husband Alma Robinson. She died from liver cancer in Idaho Falls, Bonneville County, Idaho on August 29, 1984.