Stephen D. Crocker was a graduate student at UCLA in the late 1960s, part of Leonard Kleinrock’s group that hosted the first ARPANET node. As the host sites began trying to agree on how their computers would talk to one another, Crocker took on the task of writing down the early ideas in circulating notes. The first of these, RFC 1, “Host Software,” is dated 7 April 1969 and bears his name; it opens by observing that “the software for the ARPA Network exists partly in the IMPs and partly in the respective HOSTs,” and that it was the responsibility of the host groups to agree on host software.
Crocker’s lasting contribution was less any single protocol than the form and spirit of the documents themselves. He deliberately chose the humble name “Request for Comments” to keep the notes informal and non-authoritative, lowering the barrier to participation among the young researchers who were inventing the network as they went. RFC 3, “Documentation Conventions,” which he also wrote in April 1969, made this explicit: notes were “encouraged to be timely rather than polished,” anyone at any site could contribute, and “the minimum length for a NWG note is one sentence.”
That choice mattered enormously. By making it acceptable to publish “considerably less than authoritative ideas,” Crocker created a culture in which standards emerged from open circulation and discussion rather than top-down decree. The Network Working Group he helped organize became the template for the later, larger bodies that maintained internet standards, and the RFC series he started has continued unbroken from 1969 to the present.
Crocker remained active in the internet community for decades after, working on security and on the institutions that govern the network’s names and numbers, and later chairing the board of ICANN. But his place in the history of the field was fixed by those first numbered notes: he wrote document number one of the line of documents on which the internet still runs.