John Kagai, a pastor of the Presbyterian Church of East Africa and Rose Nyachomba, in Mukurwe-ini, Nyeri County, (formerly Nyeri District in Central Province), Kenya.

[2] She was educated at Alliance Girls High School,[3] then trained as a teacher, working first at Kamwenja Teachers College and later at Kambui College in Kiambu, where she rose to the post of principal.

After a two-year romance, they married in 1961, with Lucy quitting her teaching career in 1963.

[5] She initiated Starehe Girls Center and the Mama Lucy Kibaki Hospital.

[5] Kibaki was a patron of the Kenya Girl Guides Association.