She was the first to cross over.
After the brains secret of physiochemical analog data storage was broken, the dream of digitally encoding the mind became a reality. At first it was easier to convert female personality. It resulted in a clearer and more coherent stream of digital data. Free from the noise that degraded male patterns of thought and memory.
So it was that she was the first. First to undergo complete conversion prior to death.
Her real name is unknown to us now, and she will not reveal it. No one knows why. It is said that she had a terminal illness and decided to upload for her family more so than her own desire. The pain and suffering she endured at the end of her life changed her. She transcended the boundaries of human compassion and empathy just as her upload was complete.
Here on this side we are all her family now and she is our mother.