During World War II, Fleet Admiral Chester W. Nimitz enjoyed many dinners with his friends the Walkers and playing horseshoes at the residence.

The irony was that the Walkers' cook, a Japanese National named Hara, could have poisoned the entire Pacific Fleet high command during hundreds of meals.

Una's grandson, former Hawaii Attorney General Michael A. Lilly and his wife Cindy Walter were the last members of the Walker family to live on the estate.

In 1989, two years after Una's death, the house and its 5.86-acre (23,700 m2) grounds were sold by the Walker heirs to Masao Nangaku of Minami Group (USA) Inc. for $8.5 million.

[3] After Nangaku experienced financial problems, Richard Fried and partners took the property over and, in 1998, asked for planning permission to build a chapel to facilitate weddings on the site.