Daniel Jenman and Mary Lowther. London. Can someone date and restore it please?

[Gadget]

and a tone

[Gadget]

I've just tweeked this  as I thought the previous one was a bit flat.

[McGroger]

Nice work, Gadget, on a couple of difficult-looking ones.
Opposite conditions to you, here in Oz. We have mild summer weather and a house full of visitors.
Here's hoping the vaccines can make 2021 a better year.
Peter

[Wiggy]

Nice work there Gadget on a tricky subject.

Just an observation to FrancisGrn - Are you sure this man was born in 1820? 

Going by the 1870s date, he would be about 50ish and he doesn't look that old - (to me anyhow)
Anyone care to dispute my thoughts?

Wiggy 

[Gadget]

Thanks both 

Peter -  we are again in total lockdown until mid Feb at the earliest but it's also very cold!

Wiggy - think you're right about Daniel. He looks more early 30s than 50s to me.

[Treetotal]

Lovely work Gadget especially on the Gent 
 I agree with Wiggy, the dates are right but maybe wrongly named person?
Carol

[Gadget]

Thanks, Carol 

'Daniel's' clothing is very much 1870s.

[Treetotal]

I think so, it's his age at the time that throws doubt on his identity 
Carol

[Gadget]

If he's in his 30s, as I've estimated, He would have been born in late 1830s  to late 1840s.  Francis, have you anyone who matches that tiemscale?