@chrisandre
How to merge contacts on the iPhone or iPad
- Open Contacts
- Tap the contact you would like to merge other contacts with
- Tap Edit
- Tap Link Contacts
- Tap on the duplicate contact(s)
- Tap Done
Important: Merging contacts does not overwrite any information from either contact but instead merges them into a single card. If you have any outdated information, such as old addresses, phone numbers, or emails for a contact, you should make sure to update or remove the information manually.
Obviously the above is going to take you an age with 85 contacts so I suggest you try
Merge iCloud Contacts on iPhone
- Open the Settings app.
- Tap Your Name at the top of the page.
- Select iCloud.
- Toggle Contacts to the On position.
- When asked if you want to Merge or Cancel, select Merge.
Hope that helps...