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PeerBasis
Compensation Comparability Determination

Berea Historical Society

Executive Director / CEO

EIN 341296785
OH · NTEE A82Z
FY ending 2024-12-31
June 9, 2026

This analysis benchmarks the total compensation of Nancy Gillahan, Executive Director / CEO ($9,894) against every comparable organization that fit the selection criteria — 90 in total — drawn systematically from IRS Form 990 filings, not a hand-picked subset.

Compensation sits at approximately the 7th percentile of comparable organizationsbelow the typical range for comparable organizations

Benchmarked executive: Nancy Gillahan — reported title “KEY EMPLOYEE”, selected as the organization's highest-paid individual — no exact title match, so confirm this is a comparable role.

How comparable organizations were selected

90 organizations qualified on sector, size, and geography 90 within the band form the benchmarked peer set.

Distribution of comparable compensation

$1,338 total compensation of comparable organizations → $149,051 $9,894
$19,61910th
$32,30825th
$46,919Median
$61,83575th
$74,93190th
$9,894This org · 7th
p10$19,619
p25$32,308
p50$46,919
p75$61,835
p90$74,931
$9,894

Comparable organizations

Each figure is Form 990 Part VII columns D + F (reportable pay plus other compensation and benefits; column F may include amounts from related organizations), normalized to OH cost of living (BEA RPP, 2023) and to its filing year (CPI-U); the reported amount is on each linked 990.

OrganizationStateRevenueMatched titleComp
(reported)
Comp
(adjusted)
FY
Washington County Historical MD$231,361 Executive Di $30,601 $27,011 2024
Geneva Historical Society IL$233,566 Executive Dir. $74,888 $69,512 2024
Harrisonburg-rockingham Historical VA$234,085 Executive Director $65,025 $59,278 2024
Kankakee County Historical Society IL$227,254 Executive Dir. $50,594 $46,962 2024
Milton Historical Society WI$235,066 Executive Director $43,160 $43,815 2023
Historic Preservation Trust Of PA$235,874 Director $1,380 $1,338 2023
Garfield Heritage Society IL$236,787 Executive Director $3,338 $3,098 2024
Montgomery County Historical NY$223,779 Executive Di $29,955 $25,556 2024
Island County Historical Society WA$223,467 Executive Director $36,982 $32,184 2023
Crawford County Historical Society PA$239,650 Executive Director $35,907 $34,807 2023
Fort Mill Economic Partners SC$221,807 Executive Director $35,005 $35,498 2023
Buffalo Bill Dam Visitor Center WY$220,679 General Manager $28,488 $28,802 2024
Lelooska Foundation WA$241,645 President $12,253 $10,358 2024
Peerless Rockville Historic Preservation Ltd MD$216,963 Executive Director $93,116 $84,620 2023
Colonial Pennsylvania Farmstead PA$244,925 Vice President $1,841 $1,784 2023
Schoharie County Historical Society NY$245,308 Curator $64,789 $55,275 2024
Fort Mifflin On The Delaware PA$216,140 Executive Di $66,200 $64,171 2023
Chippewa County Historical Society MN$215,141 Executive Di $39,640 $36,981 2024
West Des Moines Historical Society IA$247,603 Executive Di $52,986 $54,776 2024
Lombard Historical Society IL$248,983 Costanzo $53,045 $50,691 2023
Lakewood Historical Society OH$249,834 Executive Di $67,600 $65,858 2025
Friends Of Clermont Inc NY$250,561 Executive Di $3,432 $2,928 2024
James Whites Fort TN$210,761 Trustee $33,715 $33,460 2024
Wellesley Historical Society Inc MA$209,961 Executive Director $56,154 $49,050 2023
Napa County Historical Society CA$209,695 Executive Dir $80,000 $63,541 2025

Comp (reported) is the figure on each organization's Form 990 (columns D + F); Comp (adjusted) normalizes it to OH cost of living and 2024 dollars. Click any organization to verify the figure on ProPublica.

Methodology

Comparable organizations were drawn from electronically filed IRS Form 990 returns and matched on sector (NTEE code), budget (a size-adaptive revenue band that tightens as the organization grows), and geography (same-state first, broadening only when too few peers qualify); every organization within the band forms the peer set. To compare fairly across regions and years, peer compensation is normalized to OH cost of living (BEA Regional Price Parities, 2023) and to the subject's filing year (CPI-U). The figure benchmarked is Form 990 Part VII, Section A, columns D + F — reportable pay plus other compensation, benefits, and deferred amounts (column F may include amounts from related organizations) — with the chief executive matched by role. Related-organization amounts (column E) and institutional trustees are excluded. Full methodology: peerbasis.org/methodology.

Sample, role match & sensitivity

Sensitivity — the subject's percentile under alternative compensation definitions:

BasisSubject percentile
Total compensation (D + F), cost-of-living + inflation adjusted — the PeerBasis default7th
Total compensation (D + F), as reported (no adjustments)7th
Reportable pay only (column D), adjusted8th
All sources (D + E + F), adjusted6th

If the percentile moves materially across these definitions, the result is sensitive to methodology choices, and the board should weigh which basis best fits its facts.

Rebuttable presumption of reasonableness · 26 CFR 53.4958-6

Compensation paid by a tax-exempt organization is presumed reasonable — shifting the burden to the IRS — when three requirements are met. This report supplies the comparability data for the second. The board should record the following in its minutes concurrently with its decision:

Draft board minutes — executive compensation

  1. The compensation of the Executive Director / CEO (Nancy Gillahan) was approved in advance by [the Board / Compensation Committee], composed of members with no conflict of interest with respect to the arrangement.
  2. Prior to its determination, the authorized body obtained and relied upon appropriate comparability data, namely the PeerBasis Compensation Comparability Determination dated June 9, 2026, comparing compensation against 90 similarly situated organizations (Same NTEE sector (A82), nationwide + budget 0.67–1.5× revenue).
  3. The authorized body determined that total compensation of $9,894 is reasonable (approximately the 7th percentile of comparable organizations) and documented the basis for this determination concurrently, on [date], by a vote of [__ for / __ against].

Sources: IRS Form 990 e-file data (apps.irs.gov); IRS Business Master File (NTEE classification). Every figure traces to an original public filing — click any organization above to verify it on ProPublica. PeerBasis is a service of Prismind Analytics; its methodology is published, was commissioned for independent adversarial review, and discloses its own limitations. This report is comparability data to support a board's good-faith determination under IRC 4958; it is not legal or tax advice. Generated by PeerBasis on June 9, 2026.