Bror - My contact with MacMillan was through the direct mediation of his friend the Swedish engineer Ake Sjogren, who threw open his house to me with great kindness and hospitality. ......... I therefore sold my 700 acres and bought instead from Mr Sjogren the Swedo-African Coffee Co., owning 4500 acres near Nairobi and about the same area near Eldoret.

Aschan - A fellow Swede, Ake Sjogren further persuaded him [Blixen] to offload his semideveloped concern of 750 acres in exchange for 4,500 acres of undeveloped land south of Nairobi at the foot of the Ngong hills.

Red Book 1912 - Sjogren - Nairobi

Wikipedia: The Karen Blixen Museum, located 10 km outside of Nairobi, Kenya, "at the foot of the Ngong Hills" is the former African home of Danish author Karen Blixen, famous for her 1937 book Out of Africa which chronicles life at the estate. Located in what was then British East Africa, the bungalow-style house which is now the Karen Blixen Museum was built in 1912 by the Swedish engineer Åke Sjögren. The house and its attached property were bought in 1917 by Karen Blixen and her husband, Baron Bror von Blixen-Finecke with the intention of operating a coffee plantation.