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PeerBasis
Compensation Comparability Determination

Preservation Of Historic Winchester Inc

Executive Director / CEO

EIN 237404958
VA · NTEE A82Z
FY ending 2024-05-31
June 9, 2026

This analysis benchmarks the total compensation of Sandra Bosley, Executive Director / CEO ($24,314) against every comparable organization that fit the selection criteria — 17 in total — drawn systematically from IRS Form 990 filings, not a hand-picked subset.

Compensation sits at approximately the 41st percentile of comparable organizationswithin the typical range

Benchmarked executive: Sandra Bosley — reported title “EXECUTIVE DIRECTOR”, a direct title match to the Executive Director / CEO role.

How comparable organizations were selected

17 organizations qualified on sector, size, and geography 17 within the band form the benchmarked peer set.

Distribution of comparable compensation

$1,601 total compensation of comparable organizations → $62,057 $24,314
$9,00010th
$18,59125th
$29,960Median
$43,77475th
$53,28490th
$24,314This org · 41st
p10$9,000
p25$18,591
p50$29,960
p75$43,774
p90$53,284
$24,314

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 VA 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
National Society Of The Sons Of The American Revolution PA$78,057 President & Registrar $3,504 $3,619 2024
Haddam Historical Society Inc CT$79,914 Exec Directo $44,837 $44,826 2023
Marquette Range Iron Mining MI$80,308 Director/man $14,263 $15,697 2023
Sewickley Valley Historical Society PA$81,939 Executive Director $41,167 $43,774 2023
Historic Windsor Inc VT$69,919 Exec.director $50,262 $52,395 2024
Ohio To Erie Trail Fund OH$83,119 Exec Director-non Voting $36,000 $39,490 2024
The Society Of Mayflower Descendants ME$66,399 Governor $1,500 $1,601 2023
Ss Columbia Project NY$65,891 Chairwoman $20,000 $19,271 2023
Tioga County Historical Society PA$86,949 Managing Director $28,891 $30,720 2023
Mchenry Museum & Historical Society CA$64,708 Officer $71,227 $62,057 2025
Berkeley Architectural Heritage Association CA$88,893 Executive Director $33,500 $29,960 2024
Westminster Preservation Trust Inc MD$63,453 President $13,000 $12,588 2024
Colonial Theater Inc ME$90,527 Executive Director $30,000 $32,031 2023
Centre Park Historic District Inc PA$61,927 Executive Direc $18,000 $18,591 2024
Lewis & Clark National Park Association OR$101,962 Executive Director $56,787 $54,617 2024
Montgomery Co Historical Society IN$103,557 Exec Directo $24,621 $26,891 2024
Swiss Heritage Society Inc IN$105,467 President $18,692 $20,415 2024

Comp (reported) is the figure on each organization's Form 990 (columns D + F); Comp (adjusted) normalizes it to VA 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 VA 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 default41st
Total compensation (D + F), as reported (no adjustments)41st
Reportable pay only (column D), adjusted41st
All sources (D + E + F), adjusted35th

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 (Sandra Bosley) 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 17 similarly situated organizations (Same NTEE sector (A82), nationwide + budget 0.67–1.5× revenue).
  3. The authorized body determined that total compensation of $24,314 is reasonable (approximately the 41st 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.