A Google search on "planning class reunion" will yield many hits.
Include spouses in all activities, include the entire family in at least one. Many spouses will be from the same or almost the same year and will know and contribute to the festivities.
In ours, there was a get together Friday night, socially and casual. Saturday day was a family picnic and Saturday night was a more formal gathering, dinner/dance.
Good music is a must as are a few old yearbooks and perhaps a teacher or three from the era who can reminisce with you.
Sadly there is often a table with photos of those who have passed.
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AndyZ CRCM
My opinions are not necessarily my employers.
R+R-R=R+R
Rules and Regs minus Relationships equals Resentment and Rebellion. John Maxwell