In Trail of the Lost, Lankford describes a socio-political situation where official agencies are often felt to fall short for the families of the missing, leaving groups of amateur volunteers to step in. The book argues that, while government offices halt searches because of tangled jurisdiction, limited funds, or fading optimism, citizen networks keep working and offer community and support that institutions cannot. These volunteers’ human interest, networking, and technological innovations keep cold cases moving. Lankford suggests that, as volunteers are motivated by personal commitment rather than the formal procedures that guide law enforcement, their actions are largely altruistic and admirable, even when this is not a perfect solution.

Lankford first lays out the nature of the impact of institutional gaps through the early responses to the three disappearances. For instance, after Kris Fowler vanishes, his family is pushed from one office to another across five counties and into Canada, with no agency willing to take charge of the report. His stepmom, Sally Fowler, finally prompts action after leaving an “extremely upset message” for a sergeant (56), asking, “who the fuck do I have to talk to in order to make something happen?” (57). Similarly, authorities delay the search for David O’Sullivan for months while they try to determine which office should lead. Lankford suggests that the failure or delay of these initial official searches made the continued SAR efforts near-impossible, at least for finding living hikers, as the IPP was too wide and important evidence, some transitory, was missed or ignored. 

This slow official pace contrasts with the immediate galvanization of the volunteer community, which draws on pre-existing networks and experience to fill the institutional gaps. Lankford’s book follows this citizen group who continue SAR by pairing digital investigation with traditional searching methods. The “Bring Kris Fowler/Sherpa Home” Facebook group gains thousands of SAR-interested members who trade tips, theories, and plans. Cathy Tarr and Morgan Clements, both volunteers, are central to this theme. Cathy heads into the field to organize searches, post flyers, and talk to possible witnesses while Morgan remotely uses his data skills to map leads, study cell phone records, and check questionable sightings through social media. Their mix of fieldwork and screen-based analysis keeps the effort active long after official searches end. Although their efforts do now find the three PCT Missing, their data contributes to other SAR successes, showing the mutual benefit derived from the community approach.

Lankford also presents these volunteers as offering additional care and support for families that institutions do not provide. Tarr is shown explicitly basing her mission on her empathy for mothers like Sally Fowler and Carmel O’Sullivan, while Lankford self-consciously reveals her own attachment to the families of the missing and her sense of responsibility. Both women give the families personal support, communication, and involvement in addition to practical SAR organization. This approach contrasts with the overtly dismissive response the O’Sullivans report from the PCTA, that it is “not a babysitting service” when David first goes missing (44).

Lankford shows that, by building a community shaped by shared labor and purpose, the volunteers give the families an increased sense of possibility and control when official help is withdrawn. The book argues that filling institutional gaps depends on human connection as much as investigation.