America's first family of civil rights welcomed its newest member early Sunday.

Yolanda Reneé King — first grandchild of the late Martin Luther King Jr. and Coretta Scott King — made her appearance at Northside Hospital in Atlanta at 6:47 a.m.

Pouya Dianat/AJC (ENLARGE)

Martin Luther King III and his wife, Arndrea Waters King, didn't announce the pregnancy, or their marriage, until this past winter at the Salute to Greatness Dinner gala at the Hyatt Regency in Atlanta.

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Little Yolanda, daughter of Martin Luther King III and wife Arndrea Waters King, weighed in at 7 pounds 5 ounces. Mother and daughter are doing fine, a family spokesman said.

The baby King takes her name from her father's older sister, Yolanda Denise King, who died in 2007.

Martin Luther King III described his new baby girl as a "precious gift from God."

"It is truly the happiest day of our lives," he said in a statement released Sunday. "I know my parents are smiling down from heaven."

Little Yolanda's birth comes two years after her parents married in Santa Barbara, Calif. The couple lives in Atlanta and had kept news of their marriage private until last winter, when they announced both their union and the pregnancy at the annual Salute to Greatness awards dinner put on by the Martin Luther King Jr. Center.