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SAN DIEGO MODEL RAILROAD MUSEUM INC

EIN 95-3522268 SAN DIEGO, CA

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Revenue 2023
$1,304,157
Expenses 2023
$1,218,815

Program services were 72.2% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
A500
Classification
2000
Street
1649 EL PRADO

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Mission and programs · 2023

Mission

To research, collect, preserve and present the heritage of American railroading using educational programs, displays, toy trains, and scale models of California railroads.

  • OUR MUSEUM IS OPEN TO THE PUBLIC SIX DAYS EACH WEEK AND IS STAFFED BY 300 PLUS VOLUNTEERS, 9 FULL-TIME STAFF AND 23 PART-TIME STAFF. THE MUSEUM IS THE ONLY MODEL RAILROAD MUSEUM IN THE U.S. THAT IS FULLY ACCREDITED BY THE AMERICAN ALLIANCE OF MUSEUMS. AT 27,000 SQUARE FEET OF EXHIBIT SPACE, IT IS THE LARGEST MUSEUM OF ITS TYPE IN NORTH AMERICA.

    Expenses $572,051 · Revenue $931,548

  • OUR MUSEUM STORE SELLS EDUCATIONAL MATERIAL, RAILROAD BOOKS, PUBLICATIONS AND OTHER RAILROAD MEMORABILIA.

    Expenses $159,060 · Revenue $91,745

  • OUR EDUCATIONAL DEPARTMENT WORKS WITH SCHOOL GROUPS AND OTHER ORGANIZATIONS TO TEACH CHILDREN ABOUT RAILROADS, THEIR IMPORTANCE TO OUR NATION, AND TO EDUCATE THEM ABOUT RAILROAD SAFETY. THE MUSEUM ALSO HAS A RESEARCH LIBRARY THAT HAS A LARGE COLLECTION OF RAILROAD RELATED BOOKS AND PUBLICATIONS THAT ARE AVAILABLE TO THE GENERAL PUBLIC AND MUSEUM MEMBERS.

    Expenses $149,310 · Revenue $36,846

As filed on the 2023 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2023

As listed in Part VII of the 2023 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Anthony Ridenhour

    Executive Dir.

    Total calculated
    $93,674
    From this org
    $86,359
    From related orgs
    $0
    Other
    $7,315
    Hours/week
    40
  • Todd Gereb

    Director

    Total calculated
    $0
    Hours/week
    2
  • Maria Castillo-Curry

    Director

    Total calculated
    $0
    Hours/week
    2
  • Diana Hyatt

    President

    Total calculated
    $0
    Hours/week
    5
  • Thomas Ilas

    Secretary

    Total calculated
    $0
    Hours/week
    5
  • Dave Winter

    CFO

    Total calculated
    $0
    Hours/week
    5
  • Rick Hatcher

    Director

    Total calculated
    $0
    Hours/week
    2
  • Steve Pierce

    Director

    Total calculated
    $0
    Hours/week
    2
  • John Tarantino

    Director

    Total calculated
    $0
    Hours/week
    2
  • Cheryl Waggoner

    Vice President

    Total calculated
    $0
    Hours/week
    5
  • Roger Lafrance

    Director

    Total calculated
    $0
    Hours/week
    2
  • Scott Maase

    Director

    Total calculated
    $0
    Hours/week
    2
  • Marcus Ferril

    Director

    Total calculated
    $0
    Hours/week
    2
  • Andrea Zinko

    Director

    Total calculated
    $0
    Hours/week
    2
  • John Fiscella

    Director

    Total calculated
    $0
    Hours/week
    2
  • Kent Thaeler

    Director

    Total calculated
    $0
    Hours/week
    2
  • Carol Welsch

    Director

    Total calculated
    $0
    Hours/week
    2

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2023
    Revenue
    $1,304,157
    Expenses
    $1,218,815
    Contributions
    $208,508
    Grants paid
    $0
  • 2022
    Revenue
    $1,056,398
    Expenses
    $1,075,437
    Contributions
    $170,041
    Grants paid
    $0

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2021 · 990

    Revenue
    $1,395,999
    Expenses
    $891,575
    Assets (EOY)
    $1,706,043
  • 2020 · 990

    Revenue
    $644,898
    Expenses
    $622,455
    Assets (EOY)
    $1,366,976
  • 2019 · 990

    Revenue
    $688,011
    Expenses
    $867,596
    Assets (EOY)
    $1,268,808
  • 2018 · 990

    Revenue
    $856,677
    Expenses
    $902,191
    Assets (EOY)
    $1,201,196
  • 2017 · 990

    Revenue
    $852,652
    Expenses
    $761,400
    Assets (EOY)
    $1,227,432
  • 2016 · 990

    Revenue
    $730,707
    Expenses
    $710,852
    Assets (EOY)
    $1,132,799
  • 2015 · 990

    Revenue
    $653,453
    Expenses
    $661,714
    Assets (EOY)
    $1,081,564
  • 2014 · 990

    Revenue
    $785,384
    Expenses
    $791,027
    Assets (EOY)
    $1,167,023
  • 2013 · 990

    Revenue
    $637,900
    Expenses
    $611,546
    Assets (EOY)
    $1,140,195
  • 2012 · 990

    Revenue
    not reported
    Expenses
    $550,423
    Assets (EOY)
    $1,127,575

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all. Showing the 10 most recent; the API carries the rest.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 13 October 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 9 November 2026 and read 9 November 2026, for every organization at once. Returns through tax year 2023, the newest we have parsed for this organization.