[2] Cash attributes some of his earliest interest in the natural world to watching Mutual of Omaha's Wild Kingdom documentary television series in his family home.

Cash also worked with several park partners to secure $4 million to reopen the African Meeting House, the oldest Black church still in its original location in the country.

[7]  In 2017, Cash also served a temporary assignment as acting superintendent of National Mall and Memorial parks in Washington, DC, for 120 days.

[10] In 2022, Superintendent Cash introduced a groundbreaking proposal that would address the financial needs of the park as its visitation has consistently increased by 57% over a ten year period,[11] while working with a flat budget and a declining workforce.

Several long-time supporters, including former Senator Alexander of Tennessee,[14] have personally shared with superintendent Cash, “The Park it Forward initiative will be as impactful as it was for when Great Smoky Mountains National Park was created.” On May 24, 2021, Cash received the Agency Leadership Award from the Public Lands Alliance.

[15] On October 21, 2021, Cash received the National Park Conservation Association's 2021 Stephen Tyng Mather Award.