2024 22 USC 267 – Permanent Commission of International Geodetic Association; representative of United States

2023 22 USC 267 – Permanent Commission of International Geodetic Association; representative of United States

2022 22 USC 267 – Permanent Commission of International Geodetic Association; representative of United States

2021 22 USC 267 – Permanent Commission of International Geodetic Association; representative of United States

2020 22 USC 267 – Permanent Commission of International Geodetic Association; representative of United States

2018 22 USC 267 – Permanent Commission of International Geodetic Association; representative of United States

2017 22 USC 267 – Permanent Commission of International Geodetic Association; representative of United States

2015 22 USC 267 – Permanent Commission of International Geodetic Association; representative of United States

2014 22 USC 267 – Permanent Commission of International Geodetic Association; representative of United States

2013 22 USC 267 – Permanent Commission of International Geodetic Association; representative of United States

2012 22 USC 267 – Permanent Commission of International Geodetic Association; representative of United States

2010 22 USC 267 – Permanent Commission of International Geodetic Association; representative of United States