Moved to the United States following her marriage to John von Neumann. This was a significant transition, involving adapting to a new culture and language, although she already spoke English.

Settled in Princeton, New Jersey, where John von Neumann was a professor at the Institute for Advanced Study. She likely became involved in the social circles of the academic community and managed the household.

She took on the responsibilities of motherhood, raising Marina von Neumann Whitman, von Neumann's daughter from a previous marriage. This demonstrates her ability to integrate into a ready-made family, and it's clear that she cared for Marina.