SharePoint online newsfeed missing

We had a subsite with a newsfeed on the home page. Someone decided it should be on a different page so they deleted it from the home page. Now, we can't figure out how to restore or recreate the newsfeed. This is a new environment for us, Office 365 and SharePoint, so we would appreciate the "baby steps" version of help here.
Shannon MollenhauerProject Manager, Senior Technical TrainerAsked:
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IsaacSharePoint Client Side DeveloperCommented:

Make sure the sitefeed feature is still activated.
1- Edit the page you want
2- In the Ribbon, click Insert tab
3- Add a Web Part
4- Click Social Collaboration
5- Click Site Feed
6- Ok
Micro BloggingThis site can provide more detail.
Shannon MollenhauerProject Manager, Senior Technical TrainerAuthor Commented:
Thanks for the steps. The problem I now have is the Parts list only has 2 items - "Announcement Tiles" and "Site Users". The Site Feed part and the others showing on your list are missing. I know Site Feed is enabled (or used to be) because it was there before someone deleted the piece from the front page and I know the web part exists in other subsites.

Is the data contained within the part gone or just hiding? Is there a way to recreate the part or "borrow" the structure from another page and bring the contents back?
IsaacSharePoint Client Side DeveloperCommented:
This should be of help. Site Feed

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