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PeerBasis
Compensation Comparability Determination

Slave Dwelling Project Inc

Executive Director / CEO

EIN 463335785
SC · NTEE A50
FY ending 2024-12-31
June 9, 2026

This analysis benchmarks the total compensation of Joseph Mcgill, Executive Director / CEO ($58,051) against every comparable organization that fit the selection criteria — 84 in total — drawn systematically from IRS Form 990 filings, not a hand-picked subset.

Compensation sits at approximately the 62nd percentile of comparable organizationswithin the typical range

Benchmarked executive: Joseph Mcgill — reported title “PRESIDENT”, a direct title match to the Executive Director / CEO role.

How comparable organizations were selected

84 organizations qualified on sector, size, and geography 84 within the band form the benchmarked peer set.

Distribution of comparable compensation

$634 total compensation of comparable organizations → $141,323 $58,051
$14,50610th
$25,15525th
$46,787Median
$72,89975th
$86,94590th
$58,051This org · 62nd
p10$14,506
p25$25,155
p50$46,787
p75$72,899
p90$86,945
$58,051

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 SC 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
Hawaii Science And Technology HI$288,167 Executive Director $23,350 $21,476 2022
Rehoboth Beach Historical Society DE$288,552 Executive Director $62,030 $58,219 2024
House Of Miles East St Louis IL$289,128 President & Ceo $7,500 $7,068 2024
Montana Beyond The Classroom MT$289,365 Executive Director $53,699 $55,485 2024
Georgia Music Foundation Inc GA$291,935 Foundation M $25,000 $24,806 2023
Casey Tibbs Foundation SD$292,081 Director Of Center $85,458 $90,405 2024
Arkansas Sports Hall Of Fame Inc AR$292,446 Executive Dir. $88,000 $97,616 2023
Edison Memorial Tower Corporation NJ$293,330 Museum Direc $15,115 $12,936 2024
Classic Car Club Of America Museum Inc MI$277,157 Executive Director $57,917 $57,302 2024
Superior Public Museums WI$293,842 Executive Director $26,640 $26,669 2024
Red Wing Collectors Society Foundation MN$294,173 Museum Director $39,851 $38,860 2023
Heart & Soul UT$276,697 Executive Di $59,886 $58,751 2024
Ecovivarium CA$294,999 Employee Representative $18,515 $15,325 2024
Saint Charles County Veterans Museum MO$274,662 Executive Director $75,000 $76,144 2024
Dennison Railroad Depot Museum Inc OH$297,390 Executive Director/secretary $58,321 $59,210 2024
The Tyler Rose Museum Inc TX$272,110 Executive Dir. $93,890 $90,026 2024
Western Illinois Museum IL$270,430 Executive Director $39,561 $37,281 2024
Coliseum Museum Of Art Antiques And IL$268,238 Executive Di $50,000 $47,118 2024
Astrodome Conservancy TX$266,400 Executive Director $100,323 $99,036 2023
Nia Centre MI$264,657 Executive Director $70,733 $72,049 2023
Global Village Museum Of Arts & Cul CO$309,564 Executive Director $22,890 $21,039 2024
Ohio Air & Space Hall Of Fame OH$309,720 Exec Director $36,000 $37,628 2023
Opera Steamboat CO$261,041 Ceo $82,042 $75,407 2024
Avery Copp Museum CT$260,953 Executive Dir. $67,237 $60,429 2024
Maui Historical Society HI$257,562 Executive Di $35,400 $31,278 2023

Comp (reported) is the figure on each organization's Form 990 (columns D + F); Comp (adjusted) normalizes it to SC 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 SC 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 default62nd
Total compensation (D + F), as reported (no adjustments)62nd
Reportable pay only (column D), adjusted65th
All sources (D + E + F), adjusted58th

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 (Joseph Mcgill) 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 84 similarly situated organizations (Same NTEE sector (A50), nationwide + budget 0.67–1.5× revenue).
  3. The authorized body determined that total compensation of $58,051 is reasonable (approximately the 62nd 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.