Dan Lynch, one of the key people involved in building the Internet and ARPANET before it, has died at 82.

Dan was director of computing facilities at SRI International, where ARPANET node #2 was located and he worked on development of TCP/IP, and where the first packets were received from our site at UCLA node #1 to SRI, and later at USC-ISI led the team that made the transition from the original ARPANET NCP protocols to TCP/IP for the Internet. And much more.

Peace. -L

https://www.internethalloffame.org/inductee/dan-lynch/

Dan Lynch - Internet Hall of Fame

As a developer, researcher and evangelist of the TCP/IP protocols, Dan Lynch played a key role in driving global adoption of these protocols.

Internet Hall of Fame
@lauren ARPANET Node 4 was the University of Utah in 1969.
@stevewfolds Yes. I had the early ARPANET maps up on my bedroom wall. Back then I knew every host # by heart.
@lauren 1st heard of “email” visiting a friend Palo Alto in 1980 from another guest at SRI.
@lauren @jperlow Remember Dan Lynch. Used ARPANET in 1976 on connection between our NJ DoD communications facility and universities in CA. Required a large device in corner of our computer room to connect our DEC minicomputer to ARPANET. Couldn’t have imagined the future it would create.
@PenguinToot @jperlow That large device was the IMP. Our #1 IMP at UCLA also needed a modem box that was actually larger than the IMP, so like a second refrigerator sized unit. If memory serves, the actual 56Kbits backbone connection was on three copper pairs.
@lauren Thank you Lauren. We're indebted to you and Dan. May his memory be a blessing.
@lauren If anyone wants to start a #Wikipedia article on him – there are many internal links to https://en.wikipedia.org/wiki/Dan_Lynch_(ISI) which is currenty empty.