Opps! This sort of mix up is exactly why Marie called her eldest sister, "our Olga".
4 January 1916
My Golden Papa!
.....In the evening , the day before yesterday, we laughed and laughed. Old aunt Olga rang our Olga, that one of the soldiers from her combined regiment had asked her to come and visit her wounded from that regiment. So then, Olga goes to ring the duty room where Kulyukin was on duty, and a duty guard answers and asks, "Who is on the phone?" She answers, "Olga Nikolaevna." "Which Olga Nikolaevna?" "You don't know Olga Nikolaevna? The one who lives above you?" "No idea what you are on about." "Grand Duchess Olga Nikolaevna - have you got it?!" and then she began laughing nervously when he got all offended and said, "Madame, this is an official telephone line and prank calls are not allowed!" and hung up. Olga stormed out. Within five minutes in comes Tatiana, she rings, the guard knows her, and she explained everything. Yesterday Kulyukin came to the Liturgy and asked Olga's forgiveness of Resin, as he didn't expect her to ring and thought someone was having a joke.....
Of course "The Governess" knew the guard!