Question: What other reactor did the supervisor of construction of the reactor that went critical under the supervision of Enrico Fermi build?
Context: The Dhruva reactor is India's largest nuclear research reactor.  Located in the Mumbai (Bombay) suburb of Trombay at the Bhabha Atomic Research Centre (BARC), it is India's primary generator of weapons-grade plutonium-bearing spent fuel for its nuclear weapons program.  Originally named the R-5, this pool-type reactor first went critical on 8 August 1985 after 10 years of construction.  However, the unit did not attain full power until 1988.  The reactor experienced at least one serious accident when 4MT (four metric tons) of heavy water overflowed from the reactor core in 1985 following vibration problems. Moata was a 100 kW thermal Argonaut class reactor built at the Australian Atomic Energy Commission (later ANSTO) Research Establishment at Lucas Heights , Sydney.  Moata went critical at 5:50am on 10 April 1961 and ended operations on 31 May 1995.  The reactor was shut down as it was no longer possible, after 34 years, to economically justify its continued operations.  It was one of a group of reactors that were designed in the mid-1950s, in the United States by the Argonne National Laboratory.  The purpose of the reactor was for training scientists, however in the mid-1970s it was expanded to include activation analysis and neutron radiography.  Moata offered training in reactor control and neutron physics.  Experimental data on nuclear fuel and moderator systems was also accumulated during the operation of the reactor.  The reactor has since been permanently shutdown and with dismantling of the reactor complete the site has been completely restored.  It was the first reactor to be decommissioned in Australia.  In 1995 the used fuel from the reactor was unloaded and in 2006 it was shipped to the United States where it remains.  "Moata" was dismantled in 2009.  "Moata" is an Aboriginal name meaning "gentle-fire" or "fire-stick". Kakrapar Atomic Power Station is a nuclear power station in India, which lies in the proximity of the city of Vyara in the state of Gujarat.  It consists of two 220 MW pressurised water reactor with heavy water as moderator (PHWR).  KAPS-1 went critical on 3 September 1992 and began commercial electricity production a few months later on 6 May 1993.  KAPS-2 went critical on 8 January 1995 and began commercial production on 1 September 1995.  In January 2003, CANDU Owners Group (COG) declared KAPS as the best performing pressurised heavy water reactor. RA-1 Enrico Fermi is a research reactor in Argentina and the first nuclear reactor to be built in that country.  Construction started April 1957, with first criticality 17 January 1958.  It produced the first medical and industrial radioisotopes made in Argentina, and was used to train staff for the first two nuclear power stations there. Walter Henry Zinn (December 10, 1906 – February 14, 2000) was a nuclear physicist who was the first director of the Argonne National Laboratory from 1946 to 1956.  He worked at the Manhattan Project's Metallurgical Laboratory during World War II, and supervised the construction of Chicago Pile-1, the world’s first nuclear reactor, which went critical on December 2, 1942, at the University of Chicago.  At Argonne he designed and built several new reactors, including Experimental Breeder Reactor I, the first nuclear reactor to produce electric power, which went live on December 20, 1951. The ZEEP (Zero Energy Experimental Pile) reactor was a nuclear reactor built at the Chalk River Laboratories near Chalk River, Ontario, Canada (which superseded the Montreal Laboratory for nuclear research in Canada).  ZEEP first went critical at 15:45 on September 5, 1945.  ZEEP's was the first operational nuclear reactor outside the United States. He was appointed as Radium and X-ray physicist to the Canadian National Research Council in 1930.  In 1939-40 he attempted to build a graphite-uranium reactor in Ottawa, anticipating Enrico Fermi's work by several months.  In 1942 he joined the Anglo-French nuclear research team at the Montreal Laboratory, where he was responsible for recruiting Canadian scientists.  The laboratory later transferred to the Chalk River, and built the ZEEP Reactor, the first outside the U.S.A. The Multipurpose Applied Physics Lattice Experiment (MAPLE), later renamed MDS Medical Isotope Reactors (MMIR), was a dedicated isotope-production facility built by AECL and MDS Nordion.  It was intended to include two identical reactors, as well as the isotope-processing facilities necessary to produce a large portion of the world's medical isotopes, especially molybdenum-99, medical cobalt-60, xenon-133, iodine-131 and iodine-125.  An operational license for the MAPLE 1 reactor was granted in 1999, and the reactor went critical for the first time soon after.  However, problems with the reactor, most notably a positive power co-efficient of reactivity, led to the cancellation of the project in 2008. Chicago Pile-1 (CP-1), was the world's first artificial nuclear reactor.  Its construction was part of the Manhattan Project, the Allied effort to create atomic bombs during World War II.  It was built by the Manhattan Project's Metallurgical Laboratory at the University of Chicago, under the west viewing stands of the original Stagg Field.  The first human-made self-sustaining nuclear chain reaction was initiated in CP-1 on 2 December 1942, under the supervision of Enrico Fermi, who described the apparatus as "a crude pile of black bricks and wooden timbers". The Plum Brook Reactor was a NASA 60 megawatt water-cooled and moderated research nuclear reactor, located in Sandusky, Ohio, 50 mi west of the NASA Glenn Research Center (at that time the NASA Lewis Research Center) in Cleveland, of which it was organizationally a part.  The reactor was originally planned for the NACA nuclear airplane project, but after that was cancelled in 1961—by chance just before the initiation of the Apollo Project—it morphed into the primary NASA facility for space-related nuclear energy research and development, including scientific and technical investigations of nuclear energy for spaceflight propulsion, nuclear power systems, and radiation exposure.  The station included several large test facilities besides the reactor, including liquid hydrogen facilities for development and testing of the Centaur upper stage.  The reactor first went critical on 14 June 1971, and was finally shut down on 5 January 1973.
Answer: Experimental Breeder Reactor I