There's a lot in play. Being conservative you'd have anywhere from
32 to 128 or more 3x. 4x. etc grandpatents. depending on the years you're going to include.
If anyone is stuck and needs something looked up on a pay site, i have access to most. Just pm me. Everything is private.
How many ancestors do you have?
Parents 2
Grandparents 4
Great-Grandparents 8
2nd Great-Grandparents 16
3rd Great-Grandparents 32
4th Great-Grandparents 64
5th Great-Grandparents 128
6th Great-Grandparents 256
7th Great-Grandparents 512
8th Great-Grandparents 1,024
9th Great-Grandparents 2,048
10th Great-Grandparents 4,096
11th Great-Grandparents 8,192
12th Great-Grandparents 16,384
13th Great-Grandparents 32,768
14th Great-Grandparents 65,536
15th Great-Grandparents 131,072
16th Great-Grandparents 262,144
17th Great-Grandparents 524,288
18th Great-Grandparents 1,048,576
Etc. Etc.