FIgured it out. The suggestions from @digitalcraftsman above in post #6 were extremely helpful. For my solution, I put the following in the front matter of my content markdown file for that content type:
[[authors.lead]]
name = "A"
place = "B"
[[authors.lead]]
name = "C"
place = "D"
[[authors.lead]]
name = "E"
place = "F"
And in my single.html template for that content type:
<ul>
{{ range .Params.authors.lead }}
<li>
<span class="person"> {{ .name }} </span><br/>
<span class="organization">{{ .place }}</span>
</li>
{{ end }}
</ul>
Works like a charm. The TOML table syntax at first was hard to get my head around. Now just need to add about 50 more entries!