Preservation Oklahoma Inc
Public records show a registered, tax-exempt organization in good standing.
What it says it does
To preserve the places where Oklahoma history lives.
- Income
- $125,042
- Spending
- $126,081
- Spent on programs
- 53%
- Reserves
- 10.7 months of spending
- Largest source of income
- government grants, 72%
- Employees
- 3
- Volunteers
- 20
Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Financial health
Good: 74 out of 100.
Reserves
28 of 35Spendable reserves would cover 10.7 months of spending.
Debt
20 of 20It owes 2% of what it owns.
Living within its means
8 of 15Spending exceeded income by 1% of income.
Income trend
10 of 15Income fell 0% on the year before.
Spending floor
8 of 1553% of spending went to programs and raising each dollar of donations cost 0 cents.
Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Governance
Good: 81 out of 100.
Independent board
25 of 256 of 6 voting board members are independent.
Conflict of interest policy
15 of 15Has a written conflict of interest policy.
Whistleblower policy
0 of 8Reports no written whistleblower policy.
Record keeping policy
0 of 7Reports no written policy on keeping and destroying records.
Board minutes
5 of 5Keeps minutes of board meetings.
Board sees the tax return
10 of 10Gave the board a copy of this return before filing it.
No reported misuse
10 of 10Reports no diversion of assets, excess benefits or loans to insiders.
Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Impact evidence
Describes programs. Its tax return describes what it does but we have found no measurable results in it.
Programs described in its return (1)
- $66,557 spent. Preserving, presenting, and progessing the Henry & Anna Overholser Manion in Oklahoma City (OK), staff and volunteers work year-round to bring this historic home and museum to life with guided tours, special events, and unique limited-engagement exhibits. The museum regularly welcomes more than 5,000 guests each year for guided tours, serves as a backdrop for countless private events, and reamins camera ready for production companies. For over 120 years, the Overholser Mansion has stood proudly on the Oklahoma plains. It stands as a reflection of Oklahoma Citys beginnings and also represents the hard work of preservationists who sought to preserve its legacy. Without the dedication, forethought, and tenacity of these individuals, this piece of Oklahoma history could have been lost forever. In that vein, this structure represents what Preservation Oklahoma hopes to achieve statewide the protection and preservation of these landmarks of of Oklahomas past. Believing communities are enriched when we connect history to our present and future, we remain Oklahomas only private, non-profit organization dedicated to promoting, supporting, and coordinating historic preservation throughout our state. Preservation Oklahoma NEWS, the newsletter of Oklahomas historic preservation community, is published quarterly. With editorial content provided by the State Historic Preservation Office (a division of the Oklahoma Historical Society), the newsletter contains articles on Oklahomas historic sites and architecture; serves as a record of sites added to the National Register of Historic Places; contains an extensive list of workshops, symposiums, and educational series; and informs readers of grant and funding opportunities for preservation projects. The newsletter is regularly distributed to over 5,000 subscribers, and it is viewable online at www.preservationok.org.
Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Legitimacy checks
Is it registered with the IRS? Passed.
Listed in the IRS master file of tax-exempt organizations as a 501(c)(3) charitable organization.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.
Has the IRS revoked its tax-exempt status? Passed.
Not on the IRS automatic revocation list.
Source: Automatic revocation of exemption list, Internal Revenue Service, file dated October 13, 2026.
Are donations tax-deductible? Passed.
On the IRS list of organizations eligible to receive tax-deductible contributions.
Source: Publication 78 data: organizations eligible for tax-deductible contributions, Internal Revenue Service, file dated October 13, 2026.
Is it keeping up with its IRS filings? Passed.
Most recent return on file covers the year ending June 2025.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.
How long has it been tax-exempt? Passed.
Recognized by the IRS since March 1994.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.
Is it in good standing with state regulators? Passed.
Not on California's list of charities barred from soliciting. Other states are not yet checked.
Source: May Not Operate or Solicit for Charitable Purposes list, California Attorney General, Registry of Charities and Fundraisers, file dated October 21, 2026.
Ratings and checks are our reading of public records, using the published method. They are not a statement about anyone's honesty. If you work for this organization, you can send corrections or results, confirm you want gifts through Veridonate, or ask to be removed from giving.