Project Legacy · Authority Graph v12

Start with the thing you remember — then move through the graph.

Occupation, task, machine, material, industry, place, time, historical company and product name can each be the first reliable clue. This graph makes those relationships visible while keeping the evidence boundary visible too.

19occupation paths

24task nodes

18equipment/material nodes

10source-gated company / trust records

The graph now contains 396 explicit source-bounded relationships across occupation, task, equipment, material and industry nodes.

How to read this. A line of inquiry is not an exposure conclusion. Category relationships help decide what to investigate next. Workplace-specific, manufacturer-specific and person-specific conclusions require their own evidence.

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Search the memory vocabulary

Showing the full authority graph.

Occupations

Trade and job pathways

occupation

Pipefitters & steamfitters

Start with the trade, then narrow to task, equipment, place and time.

pipefitter · steamfitter · plumber occupation

Boilermakers

Start with the trade, then narrow to task, equipment, place and time.

boilermaker · boiler repair occupation

Electricians

Start with the trade, then narrow to task, equipment, place and time.

electrician · electrical worker · lineman occupation

Millwrights

Start with the trade, then narrow to task, equipment, place and time.

millwright · industrial mechanic occupation

Industrial maintenance workers

Start with the trade, then narrow to task, equipment, place and time.

maintenance mechanic · plant maintenance · maintenance worker occupation

Stationary engineers & boiler operators

Start with the trade, then narrow to task, equipment, place and time.

stationary engineer · boiler operator · powerhouse operator occupation

Insulators

Start with the trade, then narrow to task, equipment, place and time.

insulator · lagger · pipe insulation worker occupation

Machinists

Start with the trade, then narrow to task, equipment, place and time.

machinist · machine shop worker occupation

Vehicle & equipment mechanics

Start with the trade, then narrow to task, equipment, place and time.

auto mechanic · bus mechanic · truck mechanic · fleet mechanic occupation

HVAC & sheet metal workers

Start with the trade, then narrow to task, equipment, place and time.

hvac worker · sheet metal worker · duct mechanic occupation

Carpenters

Start with the trade, then narrow to task, equipment, place and time.

carpenter · finish carpenter · construction carpenter occupation

Painters & finishers

Start with the trade, then narrow to task, equipment, place and time.

painter · finisher · wall finisher occupation

Welders & burners

Start with the trade, then narrow to task, equipment, place and time.

welder · burner · torch cutter occupation

Laborers & demolition workers

Start with the trade, then narrow to task, equipment, place and time.

laborer · demolition worker · cleanup worker occupation

Operating engineers & heavy-equipment operators

Start with the trade, then narrow to task, equipment, place and time.

operating engineer · heavy equipment operator · equipment operator occupation

Power-plant & utility workers

Start with the trade, then narrow to task, equipment, place and time.

power plant worker · utility worker · powerhouse worker occupation

Shipyard & ship-repair workers

Start with the trade, then narrow to task, equipment, place and time.

shipyard worker · ship repair · naval shipyard worker occupation

Paper-mill workers

Start with the trade, then narrow to task, equipment, place and time.

paper mill worker · mill worker · paper machine worker occupation

Building maintenance & facilities workers

Start with the trade, then narrow to task, equipment, place and time.

building maintenance · facilities worker · custodial maintenance

Tasks