Caty began to travel frequently to be with Nathanael Greene at his various encampments. This was a difficult and often dangerous undertaking, as military camps were unsanitary and subject to disease outbreaks and attacks. However, her presence provided emotional support and boosted morale.

As a camp follower, Caty experienced the hardships of war firsthand. She witnessed the suffering of soldiers, dealt with shortages of food and supplies, and faced the constant threat of enemy attacks. However, she also played an important role in maintaining morale and providing a sense of normalcy amidst the chaos.

While Nathanael Greene was actively involved in securing supplies for the starving army, Caty was most likely away from Valley Forge. It remains documented that Nathanael requested that she stay away from the unsanitary and disease-ridden encampments, as this would protect both her and any children from undue harm. It is documented that she spent extended time in Philadelphia during this period.

Caty was known to engage in social circles and foster alliances with key figures in the revolution. While not directly participating in political decision-making, her social connections indirectly gave her influence, helping build support for her husband and the revolutionary cause. She would socialize with Martha Washington and other prominent ladies.

With the conclusion of the Revolutionary War, Caty and Nathanael Greene could look forward to a more settled life, although the war had taken a toll on their finances and well-being. Nathanael's service was honored, but establishing a stable future remained a challenge.