[1] 1922, steel magnate Alfred Lefevre and Albertine Reckinger purchased the property at 22 Boulevard Emmanuel Servais, and built a maison de maître — a grand family house.

[2] Just before leaving Luxembourg permanently, Chargé Waller signed the papers sealing the purchase of the Lefevre mansion from the Luxembourgish government on 24 June 1948 for $155,000 ($1.55 million in 2015 dollars[3]).

[2] In fact, the American government got the property for free, as Belgium covered the cost as part of its repayment to the United States under the Lend-Lease program.

[2] Indeed, of such quality was his service that in October 2003, the United States Senate passed a resolution officially naming the embassy building the Dolibois House, in his honor.

[1] In June 2015, the Luxembourg embassy, along with several other American diplomatic missions, flew the rainbow flag in honor of LGBT Pride Month, which was officially endorsed by US President Barack Obama.