Skip to content
Governance Register
US nonprofit · EIN 741036131 · Houston, TXiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 741036131) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe tenure.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2024: assets, liabilities, staff, website, telephone, pay.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue (us-approach-v4-clean). Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Houston Museum of Natural Science's network

40 people38 organisationsi40 people and 38 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (40). Violet dotted lines (42) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

51 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record.
NameRole as filedSinceOn the board
Al Walker ChairImm. Past Chair2018
8 yrs
Randa Duncan Williams ChairChairman2018
8 yrs
Alfred C Glassell IIIExec. Committee2018
8 yrs
Anne Hamman BrollierTrustee2023
3 yrs
Brady F Carruth (also filed as Brady Carruth)Exec. Committee2018
8 yrs
Carolyn DavisTrustee2019
7 yrs
Carroll R Ray (also filed as Carroll Ray)Exec. Committee2018
8 yrs
Christopher Stavros (also filed as Chris Stavros)Exec. Committee2018
8 yrs
David W Williams (also filed as David Williams)Trustee2018
8 yrs
Derrick MitchellTrustee2018
8 yrs
Douglas C ElliottTrustee2022
4 yrs
Ernest H CockrellTrustee2022
4 yrs
Eugene Werlin Jr (also filed as Gene Werlin)Exec. Committee2018
8 yrs
F Fox Benton III (also filed as Fox Benton III)Trustee2018
8 yrs
Garry TannerExec. Committee2018
8 yrs
George Lindahl III (also filed as George Lindahl)Exec. Committee2018
8 yrs
George R FarrisTrustee2018
8 yrs
George W Strake IIIExec. Committee2018
8 yrs
Harry P WeitzelTrustee2022
4 yrs
James D Weaver (also filed as Jim D Weaver)Trustee2018
8 yrs
James WuTrustee2022
4 yrs
Jason FertittaTrustee2018
8 yrs
Jason SabatTrustee2022
4 yrs
Jeanie Kilroy WilsonTrustee2020
6 yrs
Jeff B GustavsonTrustee2023
3 yrs
Joella MachTrustee2018
8 yrs
John P Wilkirson (also filed as John Wilkirson)Trustee2019
7 yrs
John W Johnson (also filed as John Johnson)Trustee2018
8 yrs
Laurie N Morian (also filed as Laurie Morian)Trustee2018
8 yrs
Lias Jeffery Steen (also filed as Lias J Steen)Trustee2022
4 yrs
Matthew J AssiffTreasurer2018
8 yrs
Maynard HoltTrustee2018
8 yrs
Michael G CousinsTrustee2022
4 yrs
Michael HolthouseTrustee2023
3 yrs
Michael K Mithoff (also filed as Michael Mithoff)Trustee2018
8 yrs
Neil W Duffin (also filed as Neil Duffin)Trustee2018
8 yrs
Peter D Huddleston (also filed as Peter Huddleston)Trustee2018
8 yrs
Randall B HaleTrustee2022
4 yrs
Ronald N McMillan (also filed as Ron McMillan)Trustee2018
8 yrs
Rusty WalterTrustee2023
3 yrs
S Reed MorianVice Chairman2018
8 yrs
Samuel E StubbsTrustee2022
4 yrs
Sean M MaherTrustee2023
3 yrs
Sippi K Khurana MDTrustee2022
4 yrs
T Mark Kelly (also filed as Tmark Kelly)Trustee2018
8 yrs
Tim CejkaCompany secretary2018
8 yrs
Tracey HendersonTrustee2022
4 yrs
Truett LatimerTrustee2018
8 yrs
William C MontgomeryExec. Committee2022
4 yrs
William E Pritchard III (also filed as Bill Pritchard)Trustee2018
8 yrs
William M Wheless IIITrustee2019
7 yrs
Under 5 years5 to 6 years6 years or moreShow all 51 →

Officers and senior leadership

17 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Angel DeleonVP Bldg Operationssince 2018
Brad LevySr. Dir. Security2022
Erin BlatzerVP Budgetingsince 2019
Eugenia K DermasChief Development Officer2023
Eugenia K TysonCDOsince 2020
Jill M LeeControllersince 2018
Joel A BartschPresidentsince 2018
Latha ThomasVP Mktg & Commsince 2018
Lisa ReboriVP Collect & Exhibsince 2018
Mark BelcherDirector of ITsince 2018
Melodie WadeSVP, Digital Marketingsince 2020
Nicholaus GaytanController2023
Nicole TempleVP, Educationsince 2020
Oscar RuizVP, Museum Facilitiessince 2020
Stephen G SachnikCFO 4/28-12/31/18since 2018
Svetlana DarnellVP Cultivation2020
Victor TicasDir. Exhibit Prod.since 2022

Pay and hours

year to 31 December 2024iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Joel A BartschPresident40$726k$31k
Eugenia K DermasChief Development Officer40$551k$31k
Jill M LeeChief Financial Officer40$409k$31k
Erin BlatzerSVP, Budgeting40$259k$26k
Angel DeLeonSVP, HR/Bldg Operations40$251k$29k
Latha ThomasSVP, Marketing40$230k$14k
Lisa ReboriSVP, Collection/Exhibit40$227k$19k
Mark BelcherDirector of IT40$213k$19k
Melodie WadeSVP, Digital Marketing40$179k$13k
Nicholaus GaytanController40$176k$18k
Victor TicasDir. Exhibit Prod.40$170k$20k
Oscar RuizVP, Museum Facilities40$162k$17k
Nicole TempleVP, Education40$151k$16k
Randa Duncan WilliamsChairman6$0
William C MontgomeryVice Chairman6$0
Matthew J AssiffTreasurer6$0
Tim CejkaSecretary6$0
Al WalkerImm. Past Chair6$0
F Fox Benton IIITrustee1$0
Anne Hamman BrollierTrustee1$0
Brady F CarruthTrustee1$0
Ernest H CockrellTrustee1$0
Carolyn DavisTrustee1$0
Neil W DuffinTrustee1$0
Douglas C ElliottTrustee1$0
George R FarrisTrustee1$0
Jason FertittaTrustee1$0
Alfred C Glassell IIITrustee1$0
Jeff B GustavsonTrustee1$0
Randall B HaleTrustee1$0
Marie Fondren HallTrustee1$0
Tracey HendersonTrustee1$0
Maynard HoltTrustee1$0
Michael HolthouseTrustee1$0
Peter D HuddlestonTrustee1$0
John W JohnsonTrustee1$0
TMark KellyTrustee1$0
Sippi K Khurana MDTrustee1$0
Truett LatimerTrustee1$0
George Lindahl IIITrustee1$0

About

Legal name
Houston Museum of Natural Science
EIN
741036131
Address
5555 Hermann Park Dr, Houston, TX, 77030-1718
State
Texas
Mission
The mission of the Houston Museum of Natural Science shall be to preserve and advance the general knowledge of natural science; to enhance in individuals the knowledge of and delight in natural science and related subjects; and to maintain and promote a museum of the first class. (as filed on the Form 990)
Activity (NTEE)
A560 Arts, culture and humanities
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Arts, Culture & Humanities
Size band
9 (IRS master file code)
Formed
1909
Principal officer
Joel A Bartsch (as named on the Form 990)
IRS ruling date
1 May 1948
Status
Code 01 (unconditional exemption)
Form 990 filings on record
5, latest 2023
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsAl Walker
≥8years on the filingsRanda Duncan Williams
≥8years on the filingsAlfred C Glassell III
≥8years on the filingsBrady F Carruth

Latest return

year to 31 December 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2024. US dollars, as filed.
Total assets
$299.4m
Total liabilities
$44.9m
Net assets or fund balances
$254.5m
Contributions and grants received
$15.2m
Program service revenue
$27.3m
Grants and similar paid out
$8k
Employees
944
Volunteers
711

State registration

1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.
Houston Museum Of Natural Science likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: Texas Comptroller of Public Accounts, entity data (data.texas.gov 9cir-efmm). Licence not stated. Data last fetched 18 October 2026.
State
Texas
Entity type
nonprofit corporation
Status
Active
Formed
14 March 1946
Registered agent
Not stated

This register does not publish officers or directors.