Jane (Delzell) Kirk was likely buried in the Concord Cemetery where her youngest son, Vachel Kirk Jr., was buried. There are no surviving headstones for Jane or her son Vachel. There is a headstone for Vachel Jr.'s granddaughter Ozora Jane Jarvis who died in 1890. There are no other headstones surrounding her marker. Perhaps this is where the Kirks were buried.
Jane's death notice was published on Thursday, February 18, 1886 in the Wapello Republican (a newspaper covering Wapello, Iowa). It read, "Mrs. Kirk, of this township, aged 85 or 90 years died last Sunday at the residence of her son, V. Kirk."