For the most part, Paris would be home to the Matherses for the next 25 years, until MacGregor’s death in 1918, and few of their domiciles strayed far from the Bois de Bologne.  The residence in which they lived the longest was a very attractive villa with three accesses, and thus three addresses: 87 avenue Mozart, 43 rue Ribéra, and 14 rue de la Source.