Her family was wealthy through her father's lumber company, and Egeberg was the youngest of nine children and the only daughter.
Egeberg's brother Christian became an accomplished amateur cellist, her two nieces, Anna Egeberg and Fredrikke Lindboe became composers of songs and piano pieces.
[1] Egeberg became an accomplished pianist, playing piano at Old Aker Church near the family property of Løkken and sometimes in concerts with the Musical Lyceum orchestra.
After 1840, Egeberg was very productive as a composer, writing more than thirty songs and piano and choral works and achieving popularity in the 1850s.
Fredrikke Egeberg lived on the farm Berg of Sem in Vestfold, where she died in 1861.