Mark Oldenkamp

President at American Dahlia Society Inc.

Fiscal year ended May 31, 2025. Published on January 25, 2026.

2025

Total compensation

Mark Oldenkamp has been listed as an employee of American Dahlia Society Inc. in Form 990 filings since fiscal year 2021.

Annual compensation details

President

2025

First Vice President

2024

First Vice President

2023

First Vice President

2022

2025

Other employees at American Dahlia Society Inc.

Alli Richards

Second Vice President

Jerry Landerholm

Special Awards Chair and Trustee

Linda Derooy Homes-Cook

First Vice President

Harry Rissetto

Finance Chair and Trustee

Charles Miehm

Treasurer

Ron Miner

Virus Research Chair and Trustee

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Other people named Mark Oldenkamp

2025

Western Poultry Scholarship & Research Foundation

Employee

Mark Oldenkamp

Association of California Egg Farmers

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Revisions to this profile

January 25, 2026:

2025 American Dahlia Society Inc. 990 published

January 25, 2026:

2024 American Dahlia Society Inc. 990 published

January 25, 2026:

2023 American Dahlia Society Inc. 990 published

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