Here is an advertisement from the Washington Times on June 28th, 1913. This is the estate formerly located at 107 South Royal St.
107 South Royal St. in Alexandria looks like this today.[googlemaps https://maps.google.com/maps?q=107+south+royal+st&layer=c&sll=38.804403,-77.043720&cbp=13,217.18,,0,5.92&cbll=38.804429,-77.043696&gl=us&ie=UTF8&hq=&hnear=107+S+Royal+St,+Alexandria,+Virginia+22314&ll=38.804404,-77.04372&spn=0.005711,0.010997&t=m&z=14&iwloc=A&panoid=0ElvL99oRAEjElDVGJ94Fg&source=embed&output=svembed]
UPDATE: This isn’t located at 107 South Royal St. Sorry … that’s where the selling agent was located. Help us locate this house, if it still exists.